if
US /ɪf/
UK /ɪf/
1.
introducing a conditional clause; on the condition that; provided that
:
•
If it rains, we will stay home.
•
Let me know if you need help.
2.
introducing an indirect question involving whether or a choice between alternatives
:
•
I wonder if she will come.
•
See if the door is locked.
3.
expressing a wish or regret
:
•
If only I had known!
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If only I could fly.
1.
a condition or supposition
:
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There are too many ifs and buts in your argument.
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We need to consider all the ifs before making a decision.