Obligation in the conditional

Reminder: to express an obligation in the present, we use the following structures: tener + que + infinitive, deber + infinitive, and the impersonal hay + que + infinitive.

Tiene que firmar debajo de su nombre.

You have to sign under your name.

Hay que regar las plantas.

The plants need to be watered.

Obligations in the conditional are less strong and we can use:

  • Tener (in the conditional) + que + infinitive

Tendríamos que invitar a Carmen.

We should invite Carmen, We would have to invite Carmen

  • Deber (in the conditional) + infinitive

Deberías comer más verduras.

You should eat more vegetables, You ought to eat more vegetables.

  • Habría  + que + infinitive

 Habría que pintar el comedor.

The dining room should be painted, The dining room would need to be painted.

  • Sería + necesario/a + infinitive

Para ir al aeropuerto sería necesario salir de casa antes de las 8h

To get to the airport it would be necessary to leave home before 8 am

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