Englishfor English speakers
if
Preposition
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If is used in a condition:
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# When something will cause something else
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#: If it rains, I will get wet.
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# When a condition is not true
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#: I'd prefer it if you took your shoes off.
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# although
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#: He was a great friend, if a little strange.
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# When ... occurs (a programming statement).
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#: If A, then B, else C.
if
Subordinator
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If is used to report questions and things that are unknown.
She asked if they had arrived yet.
I don't know if I want to go or not.
if
Noun
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If is a conditional situation.
There are many ifs we need to consider before we start on the plan.
given
Preposition
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Given mathx/math means if mathx/math is true, happened, exists, etc.
Given our current problems, I don't think we can spend any more.
Given a number, we can find another number that is bigger.
given
Adjective
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If someone is given to doing something, they do it regularly.
My father's given to making long speeches about when he was a boy.
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If someone is given to something, they wear, use, or do it often.
When she got older, she was given to elegant clothes and long speeches.
given
Noun
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A given is something that you accept as true.
We need to make a decision about where we will live after this, but selling this house is a given.