Indicative
Present Indefinite
I collapse or expand
you collapse or expand
he/she/it collapses or expands
we collapse or expand
you collapse or expand
they collapse or expand
Present Continuous
I am collapsing or expanding
you are collapsing or expanding
he/she/it is collapsing or expanding
we are collapsing or expanding
you are collapsing or expanding
they are collapsing or expanding
Present Perfect
I have collapsed or expanded
you have collapsed or expanded
he/she/it has collapsed or expanded
we have collapsed or expanded
you have collapsed or expanded
they have collapsed or expanded
Present Perfect Continuous
I have been collapsing or expanding
you have been collapsing or expanding
he/she/it has been collapsing or expanding
we have been collapsing or expanding
you have been collapsing or expanding
they have been collapsing or expanding
Past Indefinite
I collapsed or expanded
you collapsed or expanded
he/she/it collapsed or expanded
we collapsed or expanded
you collapsed or expanded
they collapsed or expanded
Past Continuous
I was collapsing or expanding
you were collapsing or expanding
he/she/it was collapsing or expanding
we were collapsing or expanding
you were collapsing or expanding
they were collapsing or expanding
Past Perfect
I had collapsed or expanded
you had collapsed or expanded
he/she/it had collapsed or expanded
we had collapsed or expanded
you had collapsed or expanded
they had collapsed or expanded
Past Perfect Continuous
I had been collapsing or expanding
you had been collapsing or expanding
he/she/it had been collapsing or expanding
we had been collapsing or expanding
you had been collapsing or expanding
they had been collapsing or expanding
Future Indefinite
I will collapse or expand
you will collapse or expand
he/she/it will collapse or expand
we will collapse or expand
you will collapse or expand
they will collapse or expand
Future Continuous
I will be collapsing or expanding
you will be collapsing or expanding
he/she/it will be collapsing or expanding
we will be collapsing or expanding
you will be collapsing or expanding
they will be collapsing or expanding
Future Perfect
I will have collapsed or expanded
you will have collapsed or expanded
he/she/it will have collapsed or expanded
we will have collapsed or expanded
you will have collapsed or expanded
they will have collapsed or expanded
Future Perfect Continuous
I will have been collapsing or expanding
you will have been collapsing or expanding
he/she/it will have been collapsing or expanding
we will have been collapsing or expanding
you will have been collapsing or expanding
they will have been collapsing or expanding
Conditional
Conditional Present
I would collapse or expand
you would collapse or expand
he/she/it would collapse or expand
we would collapse or expand
you would collapse or expand
they would collapse or expand
Conditional Present Continuous
I would be collapsing or expanding
you would be collapsing or expanding
he/she/it would be collapsing or expanding
we would be collapsing or expanding
you would be collapsing or expanding
they would be collapsing or expanding
Conditional Perfect
I would have collapsed or expanded
you would have collapsed or expanded
he/she/it would have collapsed or expanded
we would have collapsed or expanded
you would have collapsed or expanded
they would have collapsed or expanded
Conditional Perfect Continuous
I would have been collapsing or expanding
you would have been collapsing or expanding
he/she/it would have been collapsing or expanding
we would have been collapsing or expanding
you would have been collapsing or expanding
they would have been collapsing or expanding