Ask... what is the action in that sentence. It will be the verb.
The ask... (what) does that action.
What is the subject and simple subject of Many stories about the first valentine's day exist.
3 answers
stories exist
The subject is "Many stories" and the simple subject (without the modifier) is "stories."
I searched Google under the key words "sentence subject" to get these possible sources:
http://www.uottawa.ca/academic/arts/writcent/hypergrammar/subjpred.html
http://grammar.ccc.commnet.edu/GRAMMAR/subjects.htm
http://www.chompchomp.com/terms/subject.htm
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.
I searched Google under the key words "sentence subject" to get these possible sources:
http://www.uottawa.ca/academic/arts/writcent/hypergrammar/subjpred.html
http://grammar.ccc.commnet.edu/GRAMMAR/subjects.htm
http://www.chompchomp.com/terms/subject.htm
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.