Question

i need definition of present simple .

Answer 1

The simple present expresses an action in the present taking place once, never or several times. It is also used for actions that take place one after another and for actions that are set by a timetable or schedule. The simple present also expresses facts in the present.

http://www.ego4u.com/en/cram-up/grammar/simple-present

http://www.englishclub.com/grammar/verb-tenses_present-simple.htm

As I said earlier, an example is: You are silly.
Another example is: She knows that Google is helpful.

Answer 2

Also: I am messing with you.
Good luck :)