stiffened
The past tense of stiffen is stiffened
The Forms of Stiffen
| Infinitive |
to stiffen |
| Present Tense |
stiffen / stiffens |
| Past Tense |
stiffened |
| Present Participle |
stiffening |
| Past Participle |
stiffened |
Conjugate Stiffen
Stiffen in Present Simple (Indefinite) Tense
| Singular |
Plural |
| I stiffen |
We stiffen |
| You stiffen |
You stiffen |
| He/She/It stiffens |
They stiffen |
Stiffen in Present Continuous (Progressive) Tense
| Singular |
Plural |
| I am stiffening |
We are stiffening |
| You are stiffening |
You are stiffening |
| He/She/It is stiffening |
They are stiffening |
Stiffen in Present Perfect Tense
| Singular |
Plural |
| I have stiffened |
We have stiffened |
| You have stiffened |
You have stiffened |
| He/She/It has stiffened |
They have stiffened |
Stiffen in Present Perfect Continuous Tense
| Singular |
Plural |
| I have been stiffening |
We have been stiffening |
| You have been stiffening |
You have been stiffening |
| He/She/It has been stiffening |
They have been stiffening |
Stiffen in Past Simple (Indefinite) Tense
| Singular |
Plural |
| I stiffened |
We stiffened |
| You stiffened |
You stiffened |
| He/She/It stiffened |
They stiffened |
Stiffen in Past Continuous (Progressive) Tense
| Singular |
Plural |
| I was stiffening |
We were stiffening |
| You were stiffening |
You were stiffening |
| He/She/It was stiffening |
They were stiffening |
Stiffen in Past Perfect Tense
| Singular |
Plural |
| I had stiffened |
We had stiffened |
| You had stiffened |
You had stiffened |
| He/She/It had stiffened |
They had stiffened |
Stiffen in Past Perfect Continuous Tense
| Singular |
Plural |
| I had been stiffening |
We had been stiffening |
| You had been stiffening |
You had been stiffening |
| He/She/It had been stiffening |
They had been stiffening |
Stiffen in Future Simple (Indefinite) Tense
| Singular |
Plural |
| I will stiffen |
We will stiffen |
| You will stiffen |
You will stiffen |
| He/She/It will stiffen |
They will stiffen |
Stiffen in Future Continuous (Progressive) Tense
| Singular |
Plural |
| I will be stiffening |
We will be stiffening |
| You will be stiffening |
You will be stiffening |
| He/She/It will be stiffening |
They will be stiffening |
Stiffen in Future Perfect Tense
| Singular |
Plural |
| I will have stiffened |
We will have stiffened |
| You will have stiffened |
You will have stiffened |
| He/She/It will have stiffened |
They will have stiffened |
Stiffen in Future Perfect Continuous Tense
| Singular |
Plural |
| I will have been stiffening |
We will have been stiffening |
| You will have been stiffening |
You will have been stiffening |
| He/She/It will have been stiffening |
They will have been stiffening |
