no
once once once
once once once
Once.
How about the letter E.
Usually the first two and the last two letters are blue, making it "once in a blue moon"
Neither "I gone there once" nor "I been there once" are correct. One would say "I have been there" or "I've been there" OR "I have gone there" or "I've gone there". As for "I was there once" and "I went there once", they are both acceptable. The word "once" in all of these statements is not necessary unless the author is specifically stating that they were at said location only once (not twice, not thrice).
Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.Tonga once had a railway, but it is now closed.
It depends on what you are trying to say. "Once you receive it" means that sometime in the future, you anticipate receiving the object. "Once you received it" means that you already have received it, and have acted at the point when you did receive it.
Once in a while! I'm nine and I know that!
Once a year is correct.
once in an intersection?
once"once"