Be able to instead of can Be able to often has the same meaning as can. He can walk on his hands. OR He is… Continue reading

Need is used both as an auxiliary verb and as an ordinary verb. As an ordinary verb, need is used in the sense of require.… Continue reading

Must remains unchanged whatever be the tense or the number and person of the subject. It can refer to the present or future. It can… Continue reading

Permission May is used to express permission. May not is used to deny permission. May I come in, sir? Yes, you may. May I go… Continue reading

Ability Can expresses ability. Cannot (can’t) shows inability. She can speak ten languages. I can’t cook. Can you speak Spanish? Sometimes can is used in… Continue reading