to collapse
Regular verb: collapse - collapsed- collapsed

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I collapse
you collapse
she collapses
we collapse
you collapse
they collapse 	I'mcollapsing
you'recollapsing
she'scollapsing
we'recollapsing
you'recollapsing
they'recollapsing	I collapsed
you collapsed
she collapsed
we collapsed
you collapsed
they collapsed	Iwascollapsing
youwerecollapsing
shewascollapsing
wewerecollapsing
youwerecollapsing
theywerecollapsing	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've collapsed
you've collapsed
she's collapsed
we've collapsed
you've collapsed
they've collapsed	I'vebeen collapsing
you'vebeen collapsing
she'sbeen collapsing
we'vebeen collapsing
you'vebeen collapsing
they'vebeen collapsing	I'd collapsed
you'd collapsed
she'd collapsed
we'd collapsed
you'd collapsed
they'd collapsed	I'd been collapsing
you'd been collapsing
she'd been collapsing
we'd been collapsing
you'd been collapsing
they'd been collapsing	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll collapse
you'll collapse
she'll collapse
we'll collapse
you'll collapse
they'll collapse 	I'll be collapsing
you'll be collapsing
she'll be collapsing
we'll be collapsing
you'll be collapsing
they'll be collapsing	I'll have collapsed
you'll have collapsed
she'll have collapsed
we'll have collapsed
you'll have collapsed
they'll have collapsed	I'll have been collapsing
you'll have been collapsing
she'll have been collapsing
we'll have been collapsing
you'll have been collapsing
they'll have been collapsing	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd collapse
you'd collapse
she'd collapse
we'd collapse
you'd collapse
they'd collapse 	I'd be collapsing
you'd be collapsing
she'd be collapsing
we'd be collapsing
you'd be collapsing
they'd be collapsing	I'd have collapsed
you'd have collapsed
she'd have collapsed
we'd have collapsed
you'd have collapsed
they'd have collapsed	I'd have been collapsing
you'd have been collapsing
she'd have been collapsing
we'd have been collapsing
you'd have been collapsing
they'd have been collapsing	

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

Participle 	
Present 	Past 	 	 	
collapsing	collapsed