Question

Active And passive voice Correct???

Past
Active voice- He kept his promise to not say a word to anyone.
Passive- His promise, to not say a word to anyone, was kept by him.
Present
Active voice- We agree with most of your plans.
Passive voice- The plans are agreed mostly by them.
Future
Active voice- Dr. Matthew shall do a procedure to the brain.
Passive voice- The brain shall be a procedure by Dr. Matthew.

Answer 1

yes, all the answers are similar to mine, hence correct.