to collapse
Regular verb: collapse - collapsed- collapsed

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I collapse
you collapse
he collapses
we collapse
you collapse
they collapse 	Iamcollapsing
youarecollapsing
heiscollapsing
wearecollapsing
youarecollapsing
theyarecollapsing	I collapsed
you collapsed
he collapsed
we collapsed
you collapsed
they collapsed	Iwascollapsing
youwerecollapsing
hewascollapsing
wewerecollapsing
youwerecollapsing
theywerecollapsing	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I have collapsed
you have collapsed
he has collapsed
we have collapsed
you have collapsed
they have collapsed	I have been collapsing
you have been collapsing
hehasbeen collapsing
we have been collapsing
you have been collapsing
they have been collapsing	I had collapsed
you had collapsed
he had collapsed
we had collapsed
you had collapsed
they had collapsed	I had been collapsing
you had been collapsing
he had been collapsing
we had been collapsing
you had been collapsing
they had been collapsing	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I will collapse
you will collapse
he will collapse
we will collapse
you will collapse
they will collapse 	I will be collapsing
you will be collapsing
he will be collapsing
we will be collapsing
you will be collapsing
they will be collapsing	I will have collapsed
you will have collapsed
he will have collapsed
we will have collapsed
you will have collapsed
they will have collapsed	I will have been collapsing
you will have been collapsing
he will have been collapsing
we will have been collapsing
you will have been collapsing
they will have been collapsing	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I would collapse
you would collapse
he would collapse
we would collapse
you would collapse
they would collapse 	I would be collapsing
you would be collapsing
he would be collapsing
we would be collapsing
you would be collapsing
they would be collapsing	I would have collapsed
you would have collapsed
he would have collapsed
we would have collapsed
you would have collapsed
they would have collapsed	I would have been collapsing
you would have been collapsing
he would have been collapsing
we would have been collapsing
you would have been collapsing
they would have been collapsing	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to collapse 	 	collapse
Let's collapse
collapse 	 	

Participle 	
Present 	Past 	 	 	
collapsing	collapsed