不懂、不會去、不准﹖

Hi,
i am swimmimg<------------ I am swimming.( something you are DOING NOW)
I am not swimming<--------( I am not <--------- the opposite)
i do swimming <------------- Wrong!
I do swim. ( You do this sport.)( Perhaps you sometimes swim.)
i don't swimming<----------------Wrong!
I don't swim. <------------( You don't do this sport)
i can swimming<---------------Wrong!
I can swim. ( can +verb( no ing)) = 懂 swim
i can't swimming<--------------Wrong!
I can't swim. ( can't + verb( no ing)) = 不懂 swim

I<--------------------is always a capital letter.
"swim" = a verb in the sentences.



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