hyperconjugation is also called as no bond resonance . there should be a conjugated system like altenate single and double present or sp2-sp3 conjugation as well as atleast one allylic hydrogen shoud be there. it describe the stability of the system more the hyperconjugated structure more stable is the system like in case of carbocation tertiory cation is more stable then secondary and secondary is more stable then primary. tertiory form 9 hyperconjugated structure secondary form 6 and primary form 3 hyperconjugated structure