English phrase from drama scenes

What Does "i could have" Mean?

Learn what "i could have" means, when people say it, and how to use it naturally in English.

Intermediate
Neutral
Firm
Accuse

I could have sworn you

This means the speaker believed the person was secretly on the other side.

From Killer Romance, Episode 58

When do people say this?

Scene Context

The speaker says they strongly suspected the other person was working with the opposing side.

Usage Scenario

Use it when accusing someone of being allied with another group or person. It sounds suspicious and confrontational.

Better ways to say it

1
I thought you were working with them.
2
I was sure you were with them.
3
I could have sworn you were with them.

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How to Accuse Someone in English

What Does "i could have" Mean? - ReelFluent