Short/contracted forms and long forms in the going to-future

How to use short/contracted forms with the going to-future

We often use short/contracted forms with the going to-future in spoken English.

1. Affirmative sentences in the going to-future

pronoun long form short/contracted form
I I am going to buy I'm going to buy
he, she, it he is going to buy he's going to buy
we, you, they we are going to buy we're going to buy

2. Negative sentences in the going to-future

pronoun long form short/contracted form
I I am not going to buy I'm not going to buy
he, she, it he is not going to buy he isn't going to buy
he's not going to buy
we, you, they we are not going to buy we aren't going to buy
we're not going to buy