Auxiliary Verbs A. Quelques auxiliaires sont suivis d'un infinitif : B. D'autres auxiliaires sont suivis de TO + un infinitif : can (capacité) - pouvoir au présent could (possibilité) - pouvoir au conditionnel will (futur) would (conditionnel) should (conseil) - devoir au imparfait must (obligation) - devoir au présent may (permission) - pouvoir au présent might (probabilité) be able to = can be going to = will ought to = should have to = must be allowed to = may need to (avoir besoin de) want to (vouloir) like to (aimer) 1. Present Tense La plupart des auxiliaires ne changent pas au présent. Tous les sujets ont la même conjugaison - il n'y a pas de -s à la troisième personne du singulier - pour ces auxiliaires : can, could, will, would, should, must, may, might, ought to. Exemple: I can - you can - he/she/it can - we can - you can - they can 2. Negative → Ajoutez NOT après l'auxiliaire (comme BE et HAVE GOT) pour ces auxiliaires : can, could, will, would, should, must, may, might, be able to, be going to, ought to, be allowed to. Parfois, il y a des formes contractées avec NOT. He cannot read. / He can't read. They must not leave. / They mustn't leave. I will not do it. / I won't do it. You may not sit down. She is not able to sleep. / She isn't able to sleep. We are not allowed to smoke. / We aren't allowed to smoke. → Contractions cannot = can't would not = wouldn't could not = couldn't should not = shouldn't will not = won't must not = mustn't → Ajoutez DO NOT / DON'T ou DOES NOT / DOESN'T avant ces auxiliaires : have to, need to, want to, like to (et tous les autres verbes en anglais !) You do not have to help me. / You don't have to help me. He does not need to see it. / He doesn't need to see it. I do not want to be here. / I don't want to be here. She does not like to read. / She doesn't like to read. 2 3. Questions → Inversion : auxiliaire + sujet (comme BE et HAVE GOT) : can, could, will, would, should, must, may, might, be able to, be going to, be allowed to. (Il est rare que l'on forme des questions avec ought to). Can you be quiet? Will we eat dinner soon? May I borrow this book? Are they going to arrive? → DO ou DOES + sujet + verbe : have to, need to, want to, like to (et tous les autres verbes en anglais !) Do I have to go? Do you need to eat now? Does he want to play soccer? Does she like to watch TV? Exercice 1. Present: We are going to leave in 10 minutes. Negative: Question: 2. Present: Sarah needs to learn how to drive. Negative: Question: 3. Present: They are allowed to smoke here. Negative: Question: 4. Present: I can speak three languages. Negative: Question: 5. Present: He has to finish his homework. Negative: Question: