Question

only hard work is a key to success change into negative ​

Answer 1

Answer:

Explanation:

Hey dear!

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You have asked to transform the given sentence into negative without changing its meaning.  

Given sentence-   He is sure of his success.

Negative of the sentence without changing the meaning -  

He has no doubt of his success.

Or

He is not doubtful of his success.

Note:  

Transformation of a sentence is a process of changing the form or pattern of a sentence without changing its basic meaning. Here,  both the sentences convey the same meaning- He is sure and has no doubt of his success.

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