Hi, 1 I noticed she came in after me 2 I noticed her come in after me.
Are both correct? Yes. If yes, why is the second grammatically correct?
1 I noticed (that) she came in after meThis is a subordinate clause. 2 I noticed her (to) come in after me. This is an infinitive phrase. It's similar to saying 'I saw Mary cook dinner'.
2 I noticed her come in after me. Correct, and it means: 2 I noticed her coming in after me. or: 2 I noticed her to (have) come in after me. 91 on "noticed her come in" http://books.google.com/books?q=%22noticed+her+come+i