Englishfor English speakers
sever
Verb
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If you sever something, you cut through or separate it completely.
The man's arm was accidentally severed by a saw while he was working at the building.
More than five decades after the U.S. and Cuba severed ties, the relationship may be on the mend.
do
Verb
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Do is an auxiliary verb. It is used in questions, negative statements, short answers, and for emphasis when there is no other auxiliary.
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Questions
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Where do you live?
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When did you start learning English?
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"Does John live here?"
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Short answer
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"Yes, he does."
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"No, I don't."
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Negative statements
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They don't live here. [don't = do not]
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We do not want to fight.
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Jared did not tell me he had such a pretty sister.
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Emphasis (do not use this too much)
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You think I don't have a brother, but I do!
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She does enjoy swimming in the pool.
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We sometimes use do in place of a different verb, such as when we do not know what an activity is, or we do not want to say it again:
What is he doing?
Mary eats more than John does.
do
Verb
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When you do something, you perform, complete or work on a task.
Mary is doing her homework.
We all did the cleaning together.
I've got a lot to do.
"What do you do?" - "I'm a baker."
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To succeed or progress
"How did John do in the tennis match?" - "He lost."
"How is your leg doing?" - "Oh, it feels much better, thank you."
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To write or draw something, usually in a short time
He did a picture of a tree.
He did an essay on Shakespeare.
do
Noun
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A do refers to a hairstyle.
She came to work with a new do.
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Correct actions. (almost always in plural and generally with "don'ts")
Willy will tell you all the dos and don'ts.