Must / Have to
Must I water the flowers twice every day?
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Had to
He asked whether he had to water the flowers twice a day.
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May
May I use your phone?
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Might
He asked whether he might use my phone.
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Can
Can you jump over the wall?
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Could
They asked me if I could jump over the wall.
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Will / Shall
Will you come back in ten minutes?
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Would / Should
My friend asked me if I would come back in ten minutes.
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ARTICLES
The articles A / an can be used in the same meaning as the word ,,any’’.
e.g. A well-mannered person always respects others.
A snake is a very scary animal.
An English teacher must know English well.
A student should always follow his / her teacher’s suggestion.
A child needs love and care.
The articles a / an can also be used with phrases that express quantity.
A couple of – countable nouns
A dozen of – countable nouns
A great many (of) – countable nouns
A number of – countable nouns
A lot of – either countable or uncountable nouns
A great deal of – uncountable
e.g. I have a couple of questions.
A dozen of singers were awarded in the ceremony.
There are a great many flowers in this garden.
A number of mistakes have been made in paper.
We can use the ,, A ‘’ before the word half when there is a number before it. But if there is no any number before it we will use the articles ,, a / an ‘’ after it.
e.g. We ran two and a half kilometres.
She slept ten and a half hours.
Nigora has eaten half a kilo of honey.
We have spent half an hour for minuses.
We have been trying to solve this equation for five and a half hours.
They played football half a season.
The articles ,, a / an ‘’ can also give the same meaning as the word ,, per ‘’ .
e.g. BMW cars ran 260 kilometres per / an hour.
Nigora sleeps ten hours per / a day.
When we stayed in Burj Al Khalifa, we paid 2800 per / a week.
Tom reads 3 books a day.
We use the articles ,, a / an ‘’ before a noun of exclamation structures. But in this case the noun should be countable singular.
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