In some languages we can remove the subject (and sometimes a verb too) from a sentence. In Toy Story 3, the kid says "Coming!" instead of "I am coming!" to her mother.
My questions are:
1) Can I say "Coming!" instead of "I am coming!" in English?
2) If I can, when can I remove the subject and verb?
3) And would this be considered standard English?
(NOTE: The OP's question involves the topic "Ellipsis of subject pronoun + auxiliary", which is topic that often comes up on grammar forums and linguistics sites. This thread is no longer a duplicate since the other thread no longer exists. And please don't again mark the OP's question as already answered since the thread that had the supposed answer didn't actually have the answer to the OP's question. -- F.E.)