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Remember this!

The present tense form of 'harden' is harden or hardens. Example: He hardens his resolve in the face of adversity. (He hardens his resolve in the face of adversity.)

Definition of “harden”

to make or become hard or harder
to toughen or strengthen
to make less sensitive or more callous

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

Present Simple	harden
Present Continuous	hardening
Present Perfect	hardened

Present Simple

The simple present tense is used to describe habitual, regular, or general facts.

Subject + Verb + (Object)

Example

He hardens the metal with heat.

Example

They harden their hearts against disappointment.

Present Continuous

The present continuous tense is used to describe actions happening at the moment of speaking or future plans.

Subject + am/is/are + Present Participle + (Object)

Example

The glue is hardening as it dries.

Example

We are hardening our position on the matter.

Present Perfect

The present perfect tense is used to indicate actions completed at some point in the past but relevant to the present.

Subject + have/has + Past Participle + (Object)

Example

She has hardened her resolve to succeed.

Example

They have hardened their hearts after the betrayal.

harden Subject-Verb Agreement

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Notes from a Native English Speaker

Subject-verb agreement means that a subject and its verb match. They’re either both plural or both singular. A singular subject takes a singular verb. - Example: The cat is sleeping. A plural subject takes a plural verb. - Example: The cats are sleeping.

In the present tense, 'harden' follows the typical rule of adding 's' when the subject is third person singular (he, she, it), but it remains the same for all other subjects (first person, second person, and plural subjects).