Expressing necessity with the verb 'To have'
理解语法是理解一门语言的关键。
英语语法小贴士尽在Gymglish在线英语课程。
测试你的英语
免费试用, 无购买义务
在 App Store、Play Store 和 Trustpilot 上排名 4,7
超过8,000,000名全球用户。
Expressing necessity with the verb 'To have'
to have 后面跟动词不定式时，表必须:
I have to work. 我必须工作。
疑问形式使用助词do/does/did构成:
He doesn't have to wear a suit. 他不需要穿套装。
Does she have to read all this? 她必须一直读这个吗？
要强调必须性质时，有时可以加上got:
You've got to watch this movie! 你必须去看这部电影！
练习 1
Bob: Do I really to do this all by myself?
Kevin: Yes, I think you .
Bob: But I'm so scared.
Kevin: Pull it together, man. It's just the dentist.
Kevin: Yes, I think you .
Bob: But I'm so scared.
Kevin: Pull it together, man. It's just the dentist.
Bob: Do I really have 1 to do this all by myself?
Kevin: Yes, I think you do 2.
Bob: But I'm so scared.
Kevin: Pull it together, man. It's just the dentist.
Kevin: Yes, I think you do 2.
Bob: But I'm so scared.
Kevin: Pull it together, man. It's just the dentist.
1 have: We use 'have' to express the necessity of Bob's going to the dentist. It is the best choice here.
1 must: We cannot use 'must' followed by the infinitive form of the verb 'to do'. However, we could say: 'Must I do this'.
1 do: We cannot use 'do' followed by the infinitive form of the verb 'to do'.
2 do: 'Do' is the best choice here. This is a contracted response to Bob's question. Kevin is saying: 'Yes, you do (have to go to the dentist)'.
2 have: This construction is grammatically incorrect. However, we could say: 'Yes, you have to'.
2 are: Although it is grammatically correct, 'I think you are' does not make sense following Bob's question, 'Do I really have to do this?'.
练习 2
Luna: Hello Mr. Horatio. What you doing?
Horatio: Well, Miss DeLune, I to mix these two chemicals together, so I can create beautiful smells.
Luna: That sounds fun.
Horatio: Yes. Do you any whiskey?
Luna: I have some herbal tea.
Horatio: Please leave me now.
Horatio: Well, Miss DeLune, I to mix these two chemicals together, so I can create beautiful smells.
Luna: That sounds fun.
Horatio: Yes. Do you any whiskey?
Luna: I have some herbal tea.
Horatio: Please leave me now.
Luna: Hello Mr. Horatio. What are 1 you doing?
Horatio: Well, Miss DeLune, I have 2 to mix these two chemicals together, so I can create beautiful smells.
Luna: That sounds fun.
Horatio: Yes. Do you have 3 any whiskey?
Luna: I have some herbal tea.
Horatio: Please leave me now.
Horatio: Well, Miss DeLune, I have 2 to mix these two chemicals together, so I can create beautiful smells.
Luna: That sounds fun.
Horatio: Yes. Do you have 3 any whiskey?
Luna: I have some herbal tea.
Horatio: Please leave me now.
1 are: 'Are' is the best choice here. This is the correct construction for this question. Luna is asking Horatio what he is occupied with at the moment.
1 have: 'Have' does not make sense here. It cannot be used with 'doing' in this construction. We could say, however: 'What have you been doing?'.
1 do: 'Do' does not make sense here. It does not agree with 'doing' in this construction. We could say, however: 'What do you do after work?'.
2 have: We use 'have' to express Horatio's obligation to complete his current task: mixing some chemicals together.
2 do: 'Do' is grammatically incorrect here. We cannot use 'do' to express Horatio's obligation to complete an action.
2 go: 'Go' is grammatically incorrect here. 'I go' is in the simple present tense, and we can't use this tense to refer to an action in the near future. We could say: 'I am going to mix these two chemicals together'.
3 have: We use 'have' here to ask the question if Luna possesses whiskey.
3 are: 'Are' is grammatically incorrect in this case. One cannot 'be' whiskey. At least, not in this lifetime.
3 do: 'Do' does not make sense here, because one cannot 'do' whiskey.
练习 3
Philip: You got to try out this new mattress I bought.
Polly: Sorry. Not interested, even if you are 'the' Philip Cheeter.
Philip: How about we at my place around nine o'clock?
Polly: you no shame?
Philip: Fine, fine. Nine-thirty.
Polly: Sorry. Not interested, even if you are 'the' Philip Cheeter.
Philip: How about we at my place around nine o'clock?
Polly: you no shame?
Philip: Fine, fine. Nine-thirty.
Philip: You have 1 got to try out this new mattress I bought.
Polly: Sorry. Not interested, even if you are 'the' Philip Cheeter.
Philip: How about we meet 2 at my place around nine o'clock?
Polly: Have 3 you no shame?
Philip: Fine, fine. Nine-thirty.
Polly: Sorry. Not interested, even if you are 'the' Philip Cheeter.
Philip: How about we meet 2 at my place around nine o'clock?
Polly: Have 3 you no shame?
Philip: Fine, fine. Nine-thirty.
1 have: We often use the expression 'have got' to express necessity in a way similar to 'must'. In this example, 'have got' serves to strengthen the idea of the necessity.
1 are: 'Are' is grammatically incorrect in this case.
1 be: 'Be' is grammatically incorrect in this case.
2 meet: 'Meet' is the best choice here. Philip is asking Polly if she will 'meet' him after work to try out the mattress.
2 be: 'Be' does not make sense here.
2 have: 'Have' does not make sense here. If it is not followed by the preposition 'to', 'have' expresses possession, in this case.
3 Have: 'Have' is used as a verb of possession in this case. Polly is asking if Philip 'has' any shame. This is the best choice here. The question 'have you no shame?' is Polly's articulate way of pointing out Philip's arrogance and presumption.
3 Are: Because Philip cannot 'be' shame, 'are' does not make sense here.
3 Do: Because Philip cannot 'do' shame, 'do' does not make sense here.
练习 4
Fill in the blanks below with the appropriate phrase.
Theater Attendant: Sir, I'm going you and your friends to leave.
Penguin King: But I am king of the penguins, and this is my faithful entourage.
Theater Attendant: I don't care if you're the king of France. You've been causing trouble since you got here. We've already had several complaints about cigar smoke, loud hooting and throwing popcorn.
Penguin King: But I have diplomatic immunity! And my fur makes it look like I'm wearing a tuxedo. Does that not impress you?
Theater Attendant: Look, pal. What's it going to be? Are you going to leave? Or do I you ?
Penguin King: Ha ha ha! You do not scare me. I laugh at your threats. Ha ha!
Theater Attendant: Fine... Ok, Laura, send down the polar bear!
Theater Attendant: Sir, I'm going you and your friends to leave.
Penguin King: But I am king of the penguins, and this is my faithful entourage.
Theater Attendant: I don't care if you're the king of France. You've been causing trouble since you got here. We've already had several complaints about cigar smoke, loud hooting and throwing popcorn.
Penguin King: But I have diplomatic immunity! And my fur makes it look like I'm wearing a tuxedo. Does that not impress you?
Theater Attendant: Look, pal. What's it going to be? Are you going to leave? Or do I you ?
Penguin King: Ha ha ha! You do not scare me. I laugh at your threats. Ha ha!
Theater Attendant: Fine... Ok, Laura, send down the polar bear!
Fill in the blanks below with the appropriate phrase.
Theater Attendant: Sir, I'm going to have to ask 1 you and your friends to leave.
Penguin King: But I am king of the penguins, and this is my faithful entourage.
Theater Attendant: I don't care if you're the king of France. You've been causing trouble since you got here. We've already had several complaints about cigar smoke, loud hooting and throwing popcorn.
Penguin King: But I have diplomatic immunity! And my fur makes it look like I'm wearing a tuxedo. Does that not impress you?
Theater Attendant: Look, pal. What's it going to be? Are you going to leave? Or do I have to make 2 you leave 3?
Penguin King: Ha ha ha! You do not scare me. I laugh at your threats. Ha ha!
Theater Attendant: Fine... Ok, Laura, send down the polar bear!
Theater Attendant: Sir, I'm going to have to ask 1 you and your friends to leave.
Penguin King: But I am king of the penguins, and this is my faithful entourage.
Theater Attendant: I don't care if you're the king of France. You've been causing trouble since you got here. We've already had several complaints about cigar smoke, loud hooting and throwing popcorn.
Penguin King: But I have diplomatic immunity! And my fur makes it look like I'm wearing a tuxedo. Does that not impress you?
Theater Attendant: Look, pal. What's it going to be? Are you going to leave? Or do I have to make 2 you leave 3?
Penguin King: Ha ha ha! You do not scare me. I laugh at your threats. Ha ha!
Theater Attendant: Fine... Ok, Laura, send down the polar bear!
1 to have to ask: This sentence uses several interesting constructions together: the future tense construction 'be going to', which expresses the idea of action in the near or immediate future (I am going to have to ask you). When this construction is used, 'going' must be followed by a verb in the full infinitive form (to have). Then, the construction 'to have to do something' expresses necessity or obligation of Theater Attendant to ask the Penguin King to leave. The 'have to do something' construction is also ALWAYS followed by a verb in the full infinitive form (to ask).
1 have to ask: 'Going' must be followed by a verb in the full infinitive form (to ask) in order to be grammatically correct. 'I'm going have ask' is grammatically incorrect.
1 to have ask: The 'have to do something' construction is ALWAYS followed by a verb in the full infinitive form (to ask). 'I'm going to have ask' is grammatically incorrect.
1 have ask: When using the future tense construction 'be going to', which expresses the idea of action in the near or immediate future, 'going' must be followed by a verb in the full infinitive form (to have). 'I'm going have ask' is grammatically incorrect.
2 have to make: This is the best choice here. 'Have to make you leave' expresses the Theater Attendant's obligation to use force to remove the delinquent Penguin King.
2 to have to make: Because there is no other main verb in this sentence, 'have' cannot be in the infinitive form. The verb 'to have' must be conjugated in the first person present tense form.
2 to have make: Because there is no other main verb in this sentence, 'have' cannot be in the infinitive form. The verb 'to have' must be conjugated in the first person present tense form.
2 have make: 'Make' must be in the infinitive form in order to express the necessity of the action here.
3 leave: This is the best choice here. 'To make you leave' expresses the act of forcing the Penguin King to depart.
3 to leave: We cannot use 'to leave' because of the form of the expression 'make you leave'. When using the expression 'to make someone do something' the second verb does not take the infinitive marker 'to'.
3 leaving: 'Leaving' expresses a continuous action, while the context refers to an action which has not yet happened.
3 left: 'Left' does not make sense here. It expresses a past action, while the context refers to an action that has not yet happened.
练习 5
Polly: I'm really sorry, Icarus, but I get going.
Icarus: But we not yet addressed my problem.
Polly: Quickly, Icarus.
Icarus: It's just that, err, I was hoping that, uhh, we could, you know, maybe, uhh -
Polly: Icarus, I'm leaving.
Icarus: But we not yet addressed my problem.
Polly: Quickly, Icarus.
Icarus: It's just that, err, I was hoping that, uhh, we could, you know, maybe, uhh -
Polly: Icarus, I'm leaving.
Polly: I'm really sorry, Icarus, but I have to 1 get going.
Icarus: But we have 2 not yet addressed my problem.
Polly: Quickly, Icarus.
Icarus: It's just that, err, I was hoping that, uhh, we could, you know, maybe, uhh -
Polly: Icarus, I'm leaving.
Icarus: But we have 2 not yet addressed my problem.
Polly: Quickly, Icarus.
Icarus: It's just that, err, I was hoping that, uhh, we could, you know, maybe, uhh -
Polly: Icarus, I'm leaving.
1 have to: This is the best choice here. Polly says she 'has to' leave to express the necessity of her imminent departure.
1 have: We cannot use 'have' without the infinitive marker 'to' in this case.
1 am having: We cannot use the present continuous form of the verb 'am having' to express necessity.
1 had to: Because Polly is speaking about the present, we cannot use the past tense verb form 'had' in this case.
2 have: We use 'have' as an auxiliary here which precedes the past participle 'addressed'. Icarus is using the present perfect verb form 'have addressed'.
2 to have: We cannot directly follow the subject of the sentence (we) with the infinitive form of the verb (to have).
2 has: 'Has' is not the correct conjugation of 'to have' in the first-person plural in the present tense.
2 are having: We cannot use the present continuous form of the verb (are having) in this case. The negation 'not' is used between the auxiliary and the conjugated verb (are not having). Also, we almost never use the present continuous with the adverb 'yet'.
让您的学习更上一层楼
仍然觉得“Expressing necessity with the verb 'To have'”有困难？用Gymglish提升英语水平——立即试用我们的免费英语课程并接受免费水平评估吧！
他们的意见 :
您有什么避免在“Expressing necessity with the verb 'To have'”上犯错的小贴士吗？那就分享给我们吧！
了解其他语法规则。进一步提高英语水平并试用Gymglish在线英语课程。
