It can be perfectly correct: For example, "I think of that time often". Some grammatical purists believe one should use "about" instead of "of".
I think you're trying to say "I look forward to meeting you."
No, it is not correct.It is correct to say "back home"
In conjunction with
No, it is not grammatically correct. The correct way to say it is "your older sister."
No. If you are trying to say that you have the same opinion as another person, the correct way to say it is "I agree with you."
Yes this is correct.
Depends on the question. For example, I can say "what do you think ...?" There the answer would be what you think. But if i say "how do you think ...?" The answer would be how you think.
i think its thank you
i think its thank you
Yes, you can say that. Some people think you can and some people think you can't.
Yes. Think about it in a sentence. "Is he in the seat?"
I think that is good for us
Look at my creations I think you will like them. This is correct
yes it is correct
They're both correct in the appropriate context. From your question I can't decipher context so can't really say.
I think so, you can say ex-staff member or ex-employee.
It's Spanglish/Ganglish for Hey! You think?