If you often swim, you will keep fit.

1. Swimming often will help you keep fit.

It's bad for your heart if you eat too much meat.

1. Eating too much meat is bad for your heart.

You can learn things better if you do exercises.

1. Doing exercises will help you learn things better.

Tom's gained 5 kilos since he quit smoking.

1. Tom has put on 5 kilos since he stopped smoking.

She took an aspirin because she wanted to stop her toothache.

1. She took an aspirin to stop her toothache.

Eating healthy is good for our health.

1. It is good for our health to eat healthy.

My brother likes outdoor activities.

1. Outdoor activities are what my brother likes.