organic chemistry?

Question

draw the structural formulas for ten isomeric hydrocarbons with formula c5h8 including cumulated dienes and alicyclic compounds, exclude all other compounds with double bonds

Answer 1

Cumulated dienes:
1,2-pentadiene
3-methyl-1,2-butadiene
2,3-penatdiene

Alicyclic compounds:
1-cyclopropylethene
1-ethylcyclopropene
3-ethylcyclopropene
1,2-dimethylcyclopropene
1,3-dimethylcyclopropene
3,3-dimethylcyclopropene
1-methylcyclobutene
3-methylcyclobutene

There are others, but there are actually 11. Sorry I can't draw the structures, but the names should be good enough to figure out the structure.