Shoelaces

Tie your shoelaces.

Look, your shoelaces have come undone.

The first thing he did was to untie his shoelaces and take his shoes off.

I loosened my shoelaces.

He was kind enough to tie my shoelaces.

Oooh, get a move on. We'll end up late! Come on, I'll tie your shoelaces for you.

My shoelaces came undone.

My shoelaces came untied as I was walking down the street.

Tom doesn't know how to tie his shoelaces.

Tom can't tie his shoelaces by himself.