Englishfor English speakers
have
Verb
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Someone has something if the thing is in their hands. The person is holding or gripping it.
Do you have a spoon, or do you need me to give you one so you can eat the soup?
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If you have uto/u do something, you must do it.
I have to go.
I had to do it.
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Someone has something if the thing is that person's thing: the person owns it; it belongs to the person.
The rich family has a big house.
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If you have you hold something in the mind.
I have a doubt about him.
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If you have you join something.
We have lunch at 13:00.
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You use have to say that you suffer from something or to tell the experience.
I have a defective vision. (I don't see well.)
He had a wonderful time with his friends.
a
Determinative
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A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
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In some schools, an A is a very high grade.
Ron got an A on his earth science test.
heart
Noun
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The part of the body that pumps blood.
He has a problem with his heart.
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(symbolic) Where emotions are.
You broke my heart.
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Center, core.
We get to the heart of the problem.
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for others, compassion.
He has a lot of heart.
for
Preposition
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shows that something belongs to something else, or has a specific function
This cake is for you.
This is a net for catching fish.
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For is used to show the reason for something
He was angry, for he had never been called such terrible names before.
for
Subordinator
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For introduces a clause with a subject and a to-infinitive
It's not good for you to be too relaxed.