go on

1)

the lecture went on for hours

Syn:

last, continue, carry on, run on, proceed, endure, persist, take

2)

she went on about the sea

Syn:

talk at length, ramble, rattle on, chatter, prattle; Brit.; informal witter, rabbit

3)

I'm not sure what went on

Syn:

happen, take place, occur, transpire; N.Amer.; informal go down