Составить вопросительное и отрицательное предложение

Yesterday Ann (to go) for a walk with Mary.

Look! They (to go) to us.

They (to invite) us to play with them, I think.

1. when ann went for a walk with mary?

ann did not go for a walk with mary yesterday

2. look! Are they going to us?

look! they do not to us.

3 are they inviting us to play with them?

they do not inviting us to play with them, i think

я думаю, что так)