没事

it's not important / it's nothing / never mind / to have nothing to do / to be free / to be all right (out of danger or trouble)

(negative prefix for verbs) / have not / not

drowned / to end / to die / to inundate

(negative prefix for verbs) have not; not

matter / thing / item / work / affair / CL:件[jian4],樁|桩[zhuang1],回[hui2]

to have spare time / free from work / it's not important / it's nothing / never mind