영어 고수님 a plenty of 를 쓰나요?

[많은]

많은 이란 의미는 lots of, a lot of, plenty of 가산/불가산 명사. 동사는 명사의 수에 따름 아닌가요?
a plenty of 도 쓰나요? 저는 처음봐서요..제가 알고 있는게 틀렸나요??

[아뇨]

Plenty는 셀 수 없어서 복수형도 없어요
a plenty of는 어법상 맞지 않고 쓰지 않아요

[구글]

구글검색하니 요래나와요


Grammar•
You use plenty of before an uncountable noun:
There is plenty of evidence that he is guilty.
✗Don't say: There is a plenty of evidence.
You also use plenty of before a plural noun:
There are plenty of opportunities to improve your skills.
✗Don't say: There is plenty of opportunities.

[구글]

Is a plenty of correct?
Neither is correct; the correct form would be “there is plenty of…” with neither “a” nor “are”.
E.g., “Help yourself to more mashed potatoes, there's plenty left back in the kitchen”.