How French works
Chapter 12:

Saying you have to do something

Key points

When you want to express the idea of having to do something, the commonest way is to use devoir plus another verb . Devoir conjugates as follows:

Table 12: irregular verbs
devoir to have to
je dois
tu dois
il / elle doit
nous devons
vous devez
ils / elles doivent

Like pouvoir, devoir is nearly always used to introduce a verb .

Je dois faire mes devoirs

I must do my homework

Il doit faire plus d'efforts

He must make more effort

Nous devons arriver à neuf heures

We must arrive at nine o’clock

Elles doivent rentrer avant le dîner

They must get back before dinner

Note

Like you must in English, tu dois can sometimes sound a bit harsh. A way of “softening” it is to use the form known as the conditional:

Tu devrais t'excuser

You ought to apologize

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