Question

Without your help, I couldn’t have solved the technical problem with my computer the other day.

-> Had you..

-> Had it

Answer 1

Without your help, I couldn’t have solved the technical problem with my computer the other day.

-> Had you..not helped , I couldn’t have solved the technical problem with my computer the other day.

-> Had it been your help, I couldn’t have solved the technical problem with my computer the other day.

Answer 2

Without your help, I couldn’t have solved the technical problem with my computer the other day.

-> Had you not helped me , I couldn’t have solved the technical problem with my computer the other day.

-> Had it not been for your help, I couldn’t have solved the technical problem with my computer the other day.