Future 2: to be going to + ww
1)'To be going to' expresses that something is a plan (It expresses the idea that a person intends to do something in the future. It does not matter whether the plan is realistic or not.)
VB: We are going to do our homework tonight. (we hebben de intentie, dat voornemen ........)
2)predictions based on evidence (Voorspelling met bewijs)
It is going to rain soon! (Jij ziet heel donkere wolken, kan niet missen)
Look out! She is going to drop that cup of tea! (Ze wankelt, dat gaat mis!)
Werkt ook 'in het verleden'
We were going to visit my aunt, but she was out. (plan is mislukt)
I was going to call my girlfriend, but I couldn’t find my phone.(plan is mislukt)