Question

as soon as the clock struck ten, we went to sleep affirmative change in to negative​

Answer 1

Answer:

As soon as the clock struck ten, we didn't went to sleep.

*hope it will help u

Answer 2

If you convert it to negative changing the meaning, it becomes,

As soon as the clock struck ten we did not go to sleep.

If you don't want to change the meaning of the sentence then it is,

Till the clock struck ten we did not go to sleep.