Asked by rfvv
                1. What kind of mistakes is he making?
2. What kinds of mistakes is he making>
3. What kinds of mistake is he making?
4. What kind of mistake is he making?
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Which expressions are grammatical? Which one is commonly used?
            
        2. What kinds of mistakes is he making>
3. What kinds of mistake is he making?
4. What kind of mistake is he making?
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Which expressions are grammatical? Which one is commonly used?
Answers
                    Answered by
            Ms. Sue
            
    All are correct except for 3.
1, 2, and 4 are commonly used.
    
1, 2, and 4 are commonly used.
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