going to|go|going Idiom, Proverb
going to|go|going
Can be expected to; planning to.

Used after "is" (or "was", etc.), with an infinitive, in the same way "will" is used, to show future.
Some day that big tree is going to rot and fall. Look at those dark clouds. It's going to rain. The boys are going to practice football this afternoon. For a minute Ben thought the car was going to hit him. I was going to attend the meeting, but after supper I forgot about it. 
Sometimes used without the infinitive.
That worn rope hasn't broken yet, but it's going to. "Put some more wood on the fire."
"I'm going to." Compare: ABOUT TO
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going to|go|going
Can be accepted to; planning to.

Acclimated afterwards "is" (or "was", etc.), with an infinitive, in the aforementioned way "will" is used, to appearance future.
Some day that big timberline is activity to rot and fall. Look at those aphotic clouds. It's activity to rain. The boys are activity to convenance football this afternoon. For a minute Ben anticipation the car was activity to hit him. I was activity to appear the meeting, but afterwards supper I forgot about it. 
Sometimes acclimated after the infinitive.
That beat braiding hasn't burst yet, but it's activity to. "Put some added copse on the fire."
"I'm activity to." Compare: ABOUT TO
1. Dictionary