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English conjugation of the verb "to stiffen" in Present Simple Tense
Simple Forms

Basic Forms

  • Infinitive
  • to stiffen
  •  
  • Imperative
  • stiffen
  • let's stiffen
  • stiffen
  • Present Participle
  • stiffening
  •  
  • Past Participle
  • stiffened
  •  
Indicative:

Present

  • I stiffen
  • you stiffen
  • he/she/it stiffens
  • we stiffen
  • you stiffen
  • they stiffen

Past

  • I stiffened
  • you stiffened
  • he/she/it stiffened
  • we stiffened
  • you stiffened
  • they stiffened

Compound Forms

Past Participle

  • having stiffened
Indicative

Present continuous

  • I am stiffening
  • you are stiffening
  • he/she/it is stiffening
  • we are stiffening
  • you are stiffening
  • they are stiffening

Present perfect

  • I have stiffened
  • you have stiffened
  • he/she/it has stiffened
  • we have stiffened
  • you have stiffened
  • they have stiffened

Future

  • I will stiffen
  • you will stiffen
  • he/she/it will stiffen
  • we will stiffen
  • you will stiffen
  • they will stiffen

Future Perfect

  • I will have stiffened
  • you will have stiffened
  • he/she/it will have stiffened
  • we will have stiffened
  • you will have stiffened
  • they will have stiffened

Past continuous

  • I was stiffening
  • you were stiffening
  • he/she/it was stiffening
  • we were stiffening
  • you were stiffening
  • they were stiffening

Past perfect

  • I had stiffened
  • you had stiffened
  • he/she/it had stiffened
  • we had stiffened
  • you had stiffened
  • they had stiffened

Future continuous

  • I will be stiffening
  • you will be stiffening
  • he/she/it will be stiffening
  • we will be stiffening
  • you will be stiffening
  • they will be stiffening

Present perfect continuous

  • I have been stiffening
  • you have been stiffening
  • he/she/it has been stiffening
  • we have been stiffening
  • you have been stiffening
  • they have been stiffening

Past perfect continuous

  • I had been stiffening
  • you had been stiffening
  • he/she/it had been stiffening
  • we had been stiffening
  • you had been stiffening
  • they had been stiffening

Future perfect continuous

  • I will have been stiffening
  • you will have been stiffening
  • he/she/it will have been stiffening
  • we will have been stiffening
  • you will have been stiffening
  • they will have been stiffening

Basic Forms

  • Infinitive
  • not to stiffen
  •  
  • Imperative
  • do not stiffen
  • let's not stiffen
  • do not stiffen
  • Present Participle
  • not stiffening
  •  
  • Past Participle
  • not stiffened
  •  

Present

  • I do not stiffen
  • you do not stiffen
  • he/she/it does not stiffen
  • we do not stiffen
  • you do not stiffen
  • they do not stiffen

Past

  • I did not stiffen
  • you did not stiffen
  • he/she/it did not stiffen
  • we did not stiffen
  • you did not stiffen
  • they did not stiffen

Past Participle

  • not having stiffened

Present continuous

  • I am not stiffening
  • you are not stiffening
  • he/she/it is not stiffening
  • we are not stiffening
  • you are not stiffening
  • they are not stiffening

Present perfect

  • I have not stiffened
  • you have not stiffened
  • he/she/it has not stiffened
  • we have not stiffened
  • you have not stiffened
  • they have not stiffened

Future

  • I will not stiffen
  • you will not stiffen
  • he/she/it will not stiffen
  • we will not stiffen
  • you will not stiffen
  • they will not stiffen

Future Perfect

  • I will not have stiffened
  • you will not have stiffened
  • he/she/it will not have stiffened
  • we will not have stiffened
  • you will not have stiffened
  • they will not have stiffened

Past continuous

  • I was not stiffening
  • you were not stiffening
  • he/she/it was not stiffening
  • we were not stiffening
  • you were not stiffening
  • they were not stiffening

Past perfect

  • I had not stiffened
  • you had not stiffened
  • he/she/it had not stiffened
  • we had not stiffened
  • you had not stiffened
  • they had not stiffened

Future continuous

  • I will not be stiffening
  • you will not be stiffening
  • he/she/it will not be stiffening
  • we will not be stiffening
  • you will not be stiffening
  • they will not be stiffening

Present perfect continuous

  • I have not been stiffening
  • you have not been stiffening
  • he/she/it has not been stiffening
  • we have not been stiffening
  • you have not been stiffening
  • they have not been stiffening

Past perfect continuous

  • I had not been stiffening
  • you had not been stiffening
  • he/she/it had not been stiffening
  • we had not been stiffening
  • you had not been stiffening
  • they had not been stiffening

Future perfect continuous

  • I will not have been stiffening
  • you will not have been stiffening
  • he/she/it will not have been stiffening
  • we will not have been stiffening
  • you will not have been stiffening
  • they will not have been stiffening
Indicative:

Present

  • do I stiffen ?
  • do you stiffen ?
  • does he/she/it stiffen ?
  • do we stiffen ?
  • do you stiffen ?
  • do they stiffen ?

Past

  • did I stiffen ?
  • did you stiffen ?
  • did he/she/it stiffen ?
  • did we stiffen ?
  • did you stiffen ?
  • did they stiffen ?
Indicative

Present continuous

  • am I stiffening ?
  • are you stiffening ?
  • is he/she/it stiffening ?
  • are we stiffening ?
  • are you stiffening ?
  • are they stiffening ?

Present perfect

  • have I stiffened ?
  • have you stiffened ?
  • has he/she/it stiffened ?
  • have we stiffened ?
  • have you stiffened ?
  • have they stiffened ?

Future

  • will I stiffen ?
  • will you stiffen ?
  • will he/she/it stiffen ?
  • will we stiffen ?
  • will you stiffen ?
  • will they stiffen ?

Future Perfect

  • will I have stiffened ?
  • will you have stiffened ?
  • will he/she/it have stiffened ?
  • will we have stiffened ?
  • will you have stiffened ?
  • will they have stiffened ?

Past continuous

  • was I stiffening ?
  • were you stiffening ?
  • was he/she/it stiffening ?
  • were we stiffening ?
  • were you stiffening ?
  • were they stiffening ?

Past perfect

  • had I stiffened ?
  • had you stiffened ?
  • had he/she/it stiffened ?
  • had we stiffened ?
  • had you stiffened ?
  • had they stiffened ?

Future continuous

  • will I be stiffening ?
  • will you be stiffening ?
  • will he/she/it be stiffening ?
  • will we be stiffening ?
  • will you be stiffening ?
  • will they be stiffening ?

Present perfect continuous

  • have I been stiffening ?
  • have you been stiffening ?
  • has he/she/it been stiffening ?
  • have we been stiffening ?
  • have you been stiffening ?
  • have they been stiffening ?

Past perfect continuous

  • had I been stiffening ?
  • had you been stiffening ?
  • had he/she/it been stiffening ?
  • had we been stiffening ?
  • had you been stiffening ?
  • had they been stiffening ?

Future perfect continuous

  • will I have been stiffening ?
  • will you have been stiffening ?
  • will he/she/it have been stiffening ?
  • will we have been stiffening ?
  • will you have been stiffening ?
  • will they have been stiffening ?
See also verbs with similar meaning:

Definitions:

  • -  Make stiff or stiffer
  • -  Become stiff or stiffer
  • -  Restrict

Examples:

  • -  Stiffen the cream by adding gelatine
  • -  He stiffened when he saw his boss enter the room
  • -  Stiffen the regulations

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