both

[aysaa]

Hello,

-They both mean nothing.

-They both make no sense.

-Both of you are not clever enough for me.

-They both seldom go to concert.

-They both never go to concert.

Could you please check out the sentences are OK or not?

Thanks.

[SlickVic9000]

(Not a Teacher)

I wouldn't say these sentences are wrong, but most of them would work better using 'neither' instead of 'both'. The 2nd and 3rd sentences really jump out at me in this regard:
2) Neither makes any sense.
3) Neither of you are clever enough for me.

[5jj]

3) Neither of you are clever enough for me.

Before anybody asks: although purists will claim that we need a singular verb there, 'are' is perfectly acceptable to most native speakers these days.