All pupils will be taught to swim by the age of 11.

The ducklings can swim and find their own food by this time.

In a moment they were swimming by her side.

If you won't row, get out of the boat and swim by yourself!

"I'm going away and then you can swim all the time by yourselves."

These eventually can swim by themselves and go looking for another fish to live in.

But it has become more significant to me than just swimming by this point.

"You'll be swimming like crazy by the end of the summer," I kept telling her.

"That was great," he said, "I think we'll have you swimming by the end of the week."

He swims a lot by my side and keeps me company.