verbs
continue a certain state, condition, or activity
"Keep on working!"; "We continued to work into the night"; "Keep smiling"; "We went on working until well past midnight"
come to pass
"What is happening?"; "The meeting took place off without an incidence"; "Nothing occurred that seemed important"
move forward, also in the metaphorical sense
"Time marches on"
continue talking
"I know it's hard," he continued, "but there is no choice"; "carry on--pretend we are not in the room"
start running, functioning, or operating
"the lights went on"; "the computer came up"