[Grammar] I didn't broke the window of your grandmother!

[Nikitus]

Hello.

Are the following sentences grammatically correct?

"I didn't broke the window of your grandmother! It was a stupid boy called Trevor. That night, I went with a friend of mine, and Trevor, who was friend of him, I just met him a few weeks ago. I did not know that I was capable of doing that kind of stupid things. And besides you never told me about the window! I found out about the broken window years later."

Thanks.

 

[Tarheel]

Say:

I didn't break your grandmother's window.

You can stick with "the window of your grandmother" but it's rather awkward.

 

[Tarheel]

Say:

It was a stupid boy named Trevor who did it.

 

[Tarheel]

Say:

That night I got together with a friend of mine and his friend Trevor. (I had met Trevor just a few weeks before that.)

 

[Tarheel]

Say:

I did not know Trevor was capable of doing that sort of thing.

 

[Tarheel]

Remember:

I didn't break the window!