7 Commonly Confusing Grammatical Mistakes with explanations

A quick guide to errors that make you unsure: One of my friend or friends? ; look forward to see you or seeing you? ; Is 'how's you?' valid? ; do you give the exam or take the exam? ; married to someone or married with someone? ; do you cope with a situation or cope up with it? ; is it just comprise or comprise of ? All the confusion dispelled with examples and explanations.