When you write something new its not called a rap. Its called a flow. Your flows have to rhyme in the following order.
A
A
A
B
A
B
A
B
C
B
B
A
B
C
Both A's have to rhyme and both B's have to rhyme. This way the flow is organized. An example of a well written flow is one by Andre Nickatina.
man under the hot sun young cats they buck with hot guns fat ones
man if you sellin this you better know the consequence shit
walk just like army ants yeah man let me borrow that
please homeboy dont be no snitch
put this business before that fine bitch
here go a classic tale a mother fucker just got out of jail
slipped up on some major mail then went back to jail on major bail yo
And that is how you write a flow. Well, thats the proper way to do it.
meh, people freestyle, they don't got time for this lol.(except for that one guy names Jimmy dang or something, he building up(as he said he would challenge hood))
/Start flow
Flow goes in my head every night and morning I wake up on my bed
/End flow