Question

Not a simple jab of the knife will do it ( make it affirmative sentence)

Answer 1

A simple jab of knife can do it.

Answer 2

In the query, we need to remove 'not' in order to make this negative assertive statement in affirmative assertive form. But, if we will simply remove the word 'not' from the provided statement, the meaning that the statement is carrying will alter. So, our motive here must changing the form, and maintaining the meaning that the statement is trying to present.

Moreover, we can utilize opposite adjective in this statement in order to maintain the same meaning of the operative sentence. The adjective for defining the impact of the jab is "simple." We must try an opposite word in the affirmative statement in the way I am using it below.

A powerful jab of the knife will do it. (Assertive affirmative sentence)