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Remember this!

The past tense form of 'descale' is descaled. Example: She descaled the kettle to remove the built-up mineral deposits. (She descaled the kettle to remove the built-up mineral deposits.)

Definition of “descale”

to remove the scale or deposits from (a surface, especially a kettle or coffee machine)
to remove the scales or outer layers from (a fish)

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	descaled
Past Continuous	descaling
Past Perfect	descaled

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 descaled the coffee machine yesterday.

Example

I descaled the kettle last week.

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, she was descaling the fish.

Example

I wasn't descaling the kettle at that moment.

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 he finished, he had descaled all the kettles.

Example

She had descaled the coffee machine before selling it.

Is descaled an irregular verb in the past?

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

Learn More About Tenses

Discover the present tense of descale!

Discover the future tense of descale!