I don't think so. Better to say "swiftly approaching", or "quickly approaching."
You can say "fast approaching" sometimes. For example: Winter is fast approaching. There is a fast approaching car on the racetrack. It was fast approaching the time to go home.
No fastly is not a word. Fast is an adverb so you can say: He ran fast.
No. When used alone, speeding regularly connotes "going too fast."
It is correct
It is correct to say them both, but it matters on what you want to say.
*Approaching quickly*
Yes, it is correct to say "approaching fast." This phrase is commonly used to describe something that is getting closer or nearing quickly. It can be used in various contexts, such as when referring to a person, an event, a deadline, or a vehicle approaching rapidly.
You can say "fast approaching" sometimes. For example: Winter is fast approaching. There is a fast approaching car on the racetrack. It was fast approaching the time to go home.
9/11
Well, honey, "vastly approaching" isn't technically correct. You could say "rapidly approaching" or "quickly approaching" if you want to sound less like a confused thesaurus. Keep it simple, darling.
No fastly is not a word. Fast is an adverb so you can say: He ran fast.
Almost as fast as wonderwoman--or approaching the speed of light which ever your prefer.
No. This not subjunctive.
The End Is Fast Approaching - 2007 was released on: USA: 23 August 2007 (Palm Springs International Short Film Festival)
No. When used alone, speeding regularly connotes "going too fast."
They continue even today to break speed records approaching 300mph.
I think it is, but that's just me. Although he may be fast he will never be as fast as a cheetah. Sorry, but that's the way it is. I hope that helped.