What you have to do if you can't breathe when you swim?

no body can swim without learning how to breath but for the beginners may use easy breathing styles like doggy swim breath or frog breath then continue but before finishing the first method of swimming the swimmer has to learn the correct style to breath as the right techniqe >

Breathing is a basic but one of the hardest technique to be learned in swimming. Breathing technique differs on each type of stroke (front crawl stroke or commonly known as freestyle, back stroke, breast stroke, butterfly stroke, elementary back stroke and side stroke) as breathing requires the timing of the body movement to make it effective.

The technique in breathing starts with learning on doing bobbing or bubbling. It starts with inhaling in the surface of the water and exhaling in the water through your nose, not in your mouth. Exhaling in your nose makes a controled release of air which is necesasry for the technique to be more effective. Practice the technique until you get used to it. Common mistakes are holding the breath instead of bobbing. Breath holding creates discomfort in the chest which makes you promptly exhale everything all the way and breathe in air in the surface as much as you like which makes your head higher for a longer time thus making your legs sink. Make your breathing time short enough to have a good fill of air in your lungs. It's just like breathing normally. In cases your having hard time timing your breaths to your movement, again don't make your head high obove the water and do not panic. Instead, roll on your back to keep your face up. Catch your breath and relax. Keep your legs kicking and your arms moving gently to keep you afloat. Once you have recovered, roll onto your tummy and keep on swimming mastering the technique.

Turn to horizontal back position