Answer: No, you can not say it is possibly. You must say, in order to be grammatically correct, it is possible.
Hope this helps! :)
Explanation:
I believe it is "As a noun phrase". I may be wrong, it was a while since I've done this stuff.
A. The grass is always greener on the other side
A polite person may always say thank you and please. They may hold open a door for someone. They are always courteous to others. Polite means caring about others and showing respect.
