Remember this!
The past tense form of 'harden' is hardened. Example: The clay hardened in the sun. (The clay hardened in the sun.)
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:
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 | hardened |
| Past Continuous | hardening |
| Past Perfect | hardened |
Example
The ice hardened overnight.
Example
They hardened their stance on the issue.
Example
The cement was hardening in the mold.
Example
I wasn't hardening my heart, I was protecting myself.
Example
By the time he arrived, the paint had hardened.
Example
She had hardened her attitude towards him.