I wonder if these sentences are correct?
This book is able to be translated．
That law is able to be evaded

some people say the two sentences are wrong , 'be ale to 'should be replaced by 'be capable of '

I truely doutb it , I think 'be able to ' here is also correct, though 'be able to ' and 'be capable of ' have slightly different meanings.

Question

I wonder if  these sentences  are correct? 
 This book is able to be translated． 
That law is able to be evaded

some people say  the two sentences are wrong ,  'be ale to 'should be replaced by 'be capable of '

I truely doutb it , I  think 'be able to ' here is also correct, though 'be able to ' and 'be capable of ' have slightly different meanings.

Answer

The people are right. You must use "capable".
The book can be translated.
The book is capable OF BEING translated.
I just corrected the other mistakes.

The sentence about being evaded is nonsense.

Answer

I would be careful about using "evade" with "the law," as it may imply criminality, e.g. evasion of taxes.