Almost, nearly, nigh on.

present participle of come on

(UK, slang) To pretend. / (UK, slang) To exaggerate. / (UK, slang) To be impudent. / (slang) To succeed in a trick of any sort.

Imminent, coming, future.

present participle of come on to

for that matter

present participle of come at

(idiomatic) as it is possible to be

Archaic spelling of coming.

(set phrase) (of dates, especially days of the week) the immediate next, rather than the one belonging to the following week (year, etc.).