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Remember this!

The past tense form of 'warn' is warned. Example: She warned him about the slippery road ahead. (She warned him about the slippery road ahead.)

Definition of “warn”

to notify someone of a possible danger or problem
to caution or advise against something

Tense sentence structure and examples:

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Notes from a Native English Speaker

Here are the general structures of a present and past participle. Remember, some verbs have an irregular form and may not follow this structure: Present Participle: [Verb] -ing Past Participle: [Verb] -ed

Past Simple	warned
Past Continuous	warning
Past Perfect	warned

Past Simple

The simple past tense is used to describe completed actions or events that occurred at a specific point in the past.

Subject + Past Simple Verb + (Object)

Example

She warned her friends about the potential risks.

Example

The teacher warned the students not to cheat.

Past Continuous

The past continuous tense is used to indicate actions or events that were in progress or happening at a specific point in the past.

Subject + was/were + Present Participle + (Object)

Example

At that moment, he was warning everyone about the approaching danger.

Example

I wasn't warning you to be careful for no reason.

Past Perfect

The past perfect tense is used to show that one past action or event occurred before another past action or event, emphasizing the order of events in the past.

Subject + had + Past Participle + (Object)

Example

By the time they arrived, she had warned everyone about the potential hazards.

Example

He had warned them multiple times before they made the mistake.

Is warned an irregular verb in the past?

No, "warned" is not an irregular past tense verb.

Learn More About Tenses

Discover the present tense of warn!

Discover the future tense of warn!