развязывать шнурки

Том сел и начал развязывать шнурки.

Tom sat down and began to untie his shoelaces.

Он стал развязывать шнурки.

He began to untie his shoelaces.

Том стал развязывать шнурки.

Tom began to untie his shoelaces.

Они стали развязывать шнурки.

They began to untie their shoelaces.