Daily life
can't function without
be unable to work properly without something
If you cannot function without something, you cannot work, think, or manage your normal activities properly without it.
Hear it in real life
You look tired today.
I can't function without eight hours of sleep.
I can't function without a proper breakfast.
The mistake everyone makes
Not: I can’t function if my coffee.
Say: I can’t function without my coffee.
Learners may use “if” instead of “without” to express that they cannot manage in the absence of something.
Build it
How it fits in a sentence.
can't function without something; can't function without doing something
Your turn: say it out loud
I can't function without a proper breakfast.
Say it out loud two or three times, until it feels like yours.
can't function without
be unable to work properly without something
“I can't function without a proper breakfast.”
heytardy
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