Chronic sleep deprivation can impair cognitive function and weaken the immune system over time.

You can appear more confident if practise good posture you.

If you practise good posture, you can appear more confident.

If you can practise good posture, you more confident appear.

If you practise good posture, you could appearing more confident.

If you brush your teeth regularly, you may has a brighter smile.

If you may brush your teeth regularly, you have a brighter smile.

If you brush your teeth regularly, you may have a brighter smile.

If brush your teeth regularly, you may have a brighter smile.

If you’re unwell feeling, you consider should seeking medical advice.

You should consider to seek medical advice if you feeling unwell.

If feeling you’re unwell, should you consider seek medical advice.

If you’re feeling unwell, you should consider seeking medical advice.

You shouldn’t feed the wildlife if you will visit a national park.

If should you visit a national park, you don’t feed the wildlife.

If you visit a national park, you shouldn’t feed the wildlife.

If you visits a national park, you shouldn’t feeding the wildlife.

If you breathing have trouble, it might due be to allergies or asthma.

If you have trouble to breathe, it might be because allergies or asthma.

It might be allergies or asthma if trouble have you breathing.

If you have trouble breathing, it might be due to allergies or asthma.

If you have a question, you must raise your hand and ask the teacher

If you must have a question, raise your hand and you ask the teacher.

You must raise your hand and ask the teacher if you has a question.

If have you a question, you must raise hand your and ask teacher the.