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Remember this!

The past tense form of 'collapsed' is collapsed. Example: The building collapsed after the earthquake. (The building collapsed after the earthquake.)

Definition of “collapse”

to fall down or inward suddenly
to fold or compress something into a smaller size or shape
to cause something to become smaller or less

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	collapsed
Past Continuous	collapsing
Past Perfect	collapsed

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

The roof collapsed under the weight of the snow.

Example

They collapsed the tent and packed it away.

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

The company was collapsing due to financial difficulties.

Example

She wasn't collapsing under the pressure.

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, the building had collapsed completely.

Example

He had collapsed from exhaustion before reaching the finish line.

Is collapsed an irregular verb in the past?

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

Learn More About Tenses

Discover the present tense of collapse!

Discover the future tense of collapse!