Question

My brother will not participate in tree plantation Programe (convert into simpie Past)​

Answer 1

Answer:

oh so many things but we can't do anything

Answer 2

Answer:

Simple Present: My brother will not participate in tree plantation Programme.

Simple Past: My brother would not participate in tree plantation Programme.

Explanation:

Here, the main verb is will which is to be converted into past. The past form of will is would. So in the sentence, it is would.