It wasn't any use.

[tufguy]

They weren't teaching what I had to learn so it wasn't any use to join those classes.

Please check.

 

[Rover_KE]

First delete the quotation marks as you have been told ad nauseam.

 

[GoesStation]

They weren't teaching what I had to learn so it wasn't any use to join those classes.

Please check.

Congratulations, that's correct. Some editors would add a comma after learn, but some would accept the sentence as it is.

 

[ExpertLanguageTuition]

I think it's better to change part of the sentence from ...'so it wasn't any use to join those classes' to 'so it wasn't any use joining those classes.' That sounds more fluent to me. :-D Best wishes ELT

 

[tufguy]

I think it's better to change part of the sentence from ...'so it wasn't any use to join those classes' to 'so it wasn't any use joining those classes.' That sounds more fluent to me. :-D Best wishes ELT

Could you please tell me what does ELT mean?

 

[Rover_KE]

It's the OP's username in abbreviated form.