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Remember this!

The past tense form of 'adsorb' is adsorbed. Example: The activated carbon adsorbed the pollutants from the air. (The activated carbon adsorbed the pollutants from the air.)

Definition of “adsorb”

to gather and hold (a substance) on the surface in a condensed layer
to attract and retain molecules of a gas or liquid on a solid surface

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	adsorbed
Past Continuous	adsorbing
Past Perfect	adsorbed

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 sponge adsorbed the liquid quickly.

Example

The material adsorbed the dye molecules.

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 charcoal filter was adsorbing the odors in the room.

Example

The surface was adsorbing the oil droplets.

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 material had adsorbed all the moisture.

Example

The catalyst had adsorbed the reactant molecules.

Is adsorbed an irregular verb in the past?

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

Learn More About Tenses

Discover the present tense of adsorb!

Discover the future tense of adsorb!