Daily life

all of a sudden

without warning

All of a sudden means very quickly and unexpectedly, without any warning.

B1 very common mostly spoken

expression

Hear it in real life

Why did you leave the party so early?

All of a sudden, I started feeling ill.

Play the conversation

All of a sudden, the dog ran across the road.

The mistake everyone makes

Not: all in a sudden

Say: all of a sudden

The fixed expression uses “of,” not “in.”

Build it

How it fits in a sentence.

all of a sudden, something happened; something happened all of a sudden

Your turn: say it out loud

All of a sudden, the dog ran across the road.

Say it out loud two or three times, until it feels like yours.

all of a sudden

without warning

“All of a sudden, the dog ran across the road.”

heytardy

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