Using 'going to' in English: Formation, Negation, and Interrogation
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SUJETO + am/are/is going to + VERBO EN INFINITIVO.
I am going to eat.
You are going to eat.
He is going to eat.
To form the negation, add not after am/are/is:
SUJETO + am/are/is not going to + VERBO EN INFINITIVO
I am not going to dance tonight.
To form the interrogation, invert the order of the subject and the auxiliary verb to be:
am/are/is + SUJETO + going to + VERBO EN INFINITIVO ?
Are you going to dance tonight?
Short answers: Yes, I am. Yes, you are. Yes, he is.
No, I'm not. No, you aren't. No, she isn't.
Wh - Questions:
What are you going to do this weekend?
When is your mum going to come home this afternoon?
How long are they going to wait?