Select all of the sentences that do not have a double negative. i can't sing very well. i can't sing very well either. i can't sing very well neither.

The correct answers are:  "[A]" and "[B]" .

Explanation:

Note:

           The following sentences given — "Answer choices: [A] and [B]" — are the CORRECT answers;  since their corresponding sentences DO NOT have a "double negative" ;  as follows:

[A]:  " I can't sing very well. "

Note:  The only "negative" in this sentence is "cannot" — which is shown as the contraction — " can't " .

[B]:  " I can't sing very well either. "

Note: Again, the only  "negative" in this sentence is " cannot " — which is shown as the contraction — " can't " .

Further explanation:

Note that the last given answer choice:

          →  [C]: " I can't sing very well neither. "

→  is INCORRECT ;  

→   since this very sentence DOES contain a:  "double negative" ;

→  Refer to the words:  

    1) "  cannot " — which is expressed as the contraction — " can't " ;   AND :

    2)  " neither " .

Hope this answer is helpful!

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b

explanation: