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Remember this!

The past tense form of 'redline' is redlined. Example: They redlined the proposed budget due to financial constraints. (They redlined the proposed budget due to financial constraints.)

Definition of “redline”

to mark or draw a line in red to indicate a limit or boundary
to operate an engine or vehicle at or above its maximum recommended speed
to refuse to approve or fund a project or proposal

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	redlined
Past Continuous	redlining
Past Perfect	redlined

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 committee redlined the project proposal.

Example

I redlined the document to indicate changes.

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 time, they were redlining all the contracts.

Example

I was redlining the manuscript for errors.

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 end of the day, she had redlined all the documents.

Example

They had redlined the budget before finalizing it.

Is redlined an irregular verb in the past?

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

Learn More About Tenses

Discover the present tense of redline!

Discover the future tense of redline!