Never was any good at these in school!  lol.

My first is in HEAVEN but not in HELL ................

My second in SONNET but not VILLANELLE......

My third is in RHYTHM but not in TIME.................

My fourth is in STANZA but not in RHYME............

My sixth is in KNOWLEDGE but not in TO KNOW ....

My seventh is PRECISE but not quite in EXACT.......

My eighth is in FICTIONS but not in a FACT............

 

 

Phew...can't find that file, so have made this one up

Nope....I should have given a clue.....

 

 

My first is in left but never in right

My second in anger but not in a fight

My third is in ache and also in pain

My fourth is in lost but not in gain

My fifth is in heart never in chest 

My sixth is in rotten as well as the best

My seventh is in roses not in their scent

My eighth is in sleepy where my head is leant

 

 

heeheehee

oops....the hint in is the last line,