I am not sure if my sentences are correct. I am not sure if my sentences are correct.

I'll be beginning to makstart doing the English tenses challenge on next month. I'll start doing the English tenses challenge next month.

I have difficultystruggle with tenses. I struggle with tenses.

This sounds more natural

Or, Ccould I say. Or, could I say

This is not a complete sentence. You would need to write a full question and end it with a question mark. Example: Or, could I say 'I'll begin to do the English tenses challenge next month'?

I'll begin to shardo the/participate in the English tenses challenge on next month. I'll begin to do the/participate in the English tenses challenge next month.