Interrogative form en anglais

Key ways to form questions:

1. Using Auxiliary Verbs (Do/Does/Did, Be, Have, Modals):

   • With 'do/does/did': For most verbs in the simple present and simple past tenses, an auxiliary verb 'do', 'does' (for third person singular present), or 'did' (for past tense) is used at the beginning of the sentence, followed by the subject and the base form of the main verb.
     • Example: "You like coffee." $\rightarrow$ "Do you like coffee?"
     • Example: "She lives in London." $\rightarrow$ "Does she live in London?"
     • Example: "They went to the party." $\rightarrow$ "Did they go to the party?"
   • With 'be' (am, is, are, was, were): When 'be' is the main verb or an auxiliary verb (e.g., in continuous tenses), it is placed before the subject.
     • Example: "He is a doctor." $\rightarrow$ "Is he a doctor?"
     • Example: "They are studying." $\rightarrow$ "Are they studying?"
   • With 'have' (as an auxiliary for perfect tenses): 'Have', 'has', or 'had' is placed before the subject.
     • Example: "You have finished your work." $\rightarrow$ "Have you finished your work?"
   • With Modal Verbs (can, will, should, must, etc.): The modal verb is placed before the subject.
     • Example: "She can swim." $\rightarrow$ "Can she swim?"
     • Example: "They will arrive soon." $\rightarrow$ "Will they arrive soon?"

2. Using Wh-Question Words (Who, What, Where, When, Why, How): These words are placed at the beginning of the sentence, followed by the auxiliary verb (if needed), the subject, and the main verb.

   • Example: "What do you want?"
   • Example: "Where is she going?"
   • Example: "When did they leave?"
   • Example: "Who broke the window?" (When 'who' is the subject, no auxiliary 'do' is used, and the verb remains in its usual form).