English Conjugation

Verb conjugation

Conjugate To stiffen in English

Regular verb
stiffen, stiffened, stiffened

Indicative

Present (simple)

  • I stiffen
  • you stiffen
  • he stiffens
  • we stiffen
  • you stiffen
  • they stiffen

Present progressive / continuous

  • I am stiffening
  • you are stiffening
  • he is stiffening
  • we are stiffening
  • you are stiffening
  • they are stiffening

Past (simple)

  • I stiffened
  • you stiffened
  • he stiffened
  • we stiffened
  • you stiffened
  • they stiffened

Past progressive / continuous

  • I was stiffening
  • you were stiffening
  • he was stiffening
  • we were stiffening
  • you were stiffening
  • they were stiffening

Present perfect (simple)

  • I have stiffened
  • you have stiffened
  • he has stiffened
  • we have stiffened
  • you have stiffened
  • they have stiffened

Present perfect progressive / continuous

  • I have been stiffening
  • you have been stiffening
  • he has been stiffening
  • we have been stiffening
  • you have been stiffening
  • they have been stiffening

Past perfect

  • I had stiffened
  • you had stiffened
  • he had stiffened
  • we had stiffened
  • you had stiffened
  • they had stiffened

Past perfect progressive / continuous

  • I had been stiffening
  • you had been stiffening
  • he had been stiffening
  • we had been stiffening
  • you had been stiffening
  • they had been stiffening

Future

  • I will stiffen
  • you will stiffen
  • he will stiffen
  • we will stiffen
  • you will stiffen
  • they will stiffen

Future progressive / continuous

  • I will be stiffening
  • you will be stiffening
  • he will be stiffening
  • we will be stiffening
  • you will be stiffening
  • they will be stiffening

Future perfect

  • I will have stiffened
  • you will have stiffened
  • he will have stiffened
  • we will have stiffened
  • you will have stiffened
  • they will have stiffened

Future perfect continuous

  • I will have been stiffening
  • you will have been stiffening
  • he will have been stiffening
  • we will have been stiffening
  • you will have been stiffening
  • they will have been stiffening

Conditional

Simple

  • I would stiffen
  • you would stiffen
  • he would stiffen
  • we would stiffen
  • you would stiffen
  • they would stiffen

Progressive

  • I would be stiffening
  • you would be stiffening
  • he would be stiffening
  • we would be stiffening
  • you would be stiffening
  • they would be stiffening

Perfect

  • I would have stiffened
  • you would have stiffened
  • he would have stiffened
  • we would have stiffened
  • you would have stiffened
  • they would have stiffened

Perfect progressive

  • I would have been stiffening
  • you would have been stiffening
  • he would have been stiffening
  • we would have been stiffening
  • you would have been stiffening
  • they would have been stiffening

Infinitive

Infinitive

  • to stiffen

Imperative

Imperative

  • stiffen
  • Let's stiffen
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