It depends on the context you are using it in.
Example: In class we had to tap our foot in time to the beat.
I had to skip breakfast in order to be on time for work.
As time flies is grammatically correct.
Yes, it is grammatically correct.
Yes, Almighty God is grammatically correct.
"That was wrong" is a grammatically correct sentence.
This sentence is grammatically correct.
As time flies is grammatically correct.
No, the sentence is not grammatically correct. It should be: "It had been a long time since I had written to you."
no.
"It is the time for someone" is correct. It implies that it is the right moment or opportunity for that person.
It can be, but not all the time.
yes
No, I think the correct way is- Is this the first time you've seen it?
"Not like that" can be grammatically correct, depending on the context.
The phrase "Is you don't miss me do you" is not grammatically correct. It should be rephrased to something like "Don't you miss me?" to be correct.
Yes! That is grammatically correct!
Yes, 'for free', is grammatically correct.
That sentence is grammatically correct.