Indicative
Present Indefinite
I stiffle
you stiffle
he/she/it stiffles
we stiffle
you stiffle
they stiffle
Present Continuous
I am stiffling
you are stiffling
he/she/it is stiffling
we are stiffling
you are stiffling
they are stiffling
Present Perfect
I have stiffled
you have stiffled
he/she/it has stiffled
we have stiffled
you have stiffled
they have stiffled
Present Perfect Continuous
I have been stiffling
you have been stiffling
he/she/it has been stiffling
we have been stiffling
you have been stiffling
they have been stiffling
Past Indefinite
I stiffled
you stiffled
he/she/it stiffled
we stiffled
you stiffled
they stiffled
Past Continuous
I was stiffling
you were stiffling
he/she/it was stiffling
we were stiffling
you were stiffling
they were stiffling
Past Perfect
I had stiffled
you had stiffled
he/she/it had stiffled
we had stiffled
you had stiffled
they had stiffled
Past Perfect Continuous
I had been stiffling
you had been stiffling
he/she/it had been stiffling
we had been stiffling
you had been stiffling
they had been stiffling
Future Indefinite
I will stiffle
you will stiffle
he/she/it will stiffle
we will stiffle
you will stiffle
they will stiffle
Future Continuous
I will be stiffling
you will be stiffling
he/she/it will be stiffling
we will be stiffling
you will be stiffling
they will be stiffling
Future Perfect
I will have stiffled
you will have stiffled
he/she/it will have stiffled
we will have stiffled
you will have stiffled
they will have stiffled
Future Perfect Continuous
I will have been stiffling
you will have been stiffling
he/she/it will have been stiffling
we will have been stiffling
you will have been stiffling
they will have been stiffling
Conditional
Conditional Present
I would stiffle
you would stiffle
he/she/it would stiffle
we would stiffle
you would stiffle
they would stiffle
Conditional Present Continuous
I would be stiffling
you would be stiffling
he/she/it would be stiffling
we would be stiffling
you would be stiffling
they would be stiffling
Conditional Perfect
I would have stiffled
you would have stiffled
he/she/it would have stiffled
we would have stiffled
you would have stiffled
they would have stiffled
Conditional Perfect Continuous
I would have been stiffling
you would have been stiffling
he/she/it would have been stiffling
we would have been stiffling
you would have been stiffling
they would have been stiffling