to invalidate
Regular verb: invalidate - invalidated- invalidated

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I invalidate
you invalidate
he invalidates
we invalidate
you invalidate
they invalidate 	I'minvalidating
you'reinvalidating
he'sinvalidating
we'reinvalidating
you'reinvalidating
they'reinvalidating	I invalidated
you invalidated
he invalidated
we invalidated
you invalidated
they invalidated	Iwasinvalidating
youwereinvalidating
hewasinvalidating
wewereinvalidating
youwereinvalidating
theywereinvalidating	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've invalidated
you've invalidated
he's invalidated
we've invalidated
you've invalidated
they've invalidated	I'vebeen invalidating
you'vebeen invalidating
he'sbeen invalidating
we'vebeen invalidating
you'vebeen invalidating
they'vebeen invalidating	I'd invalidated
you'd invalidated
he'd invalidated
we'd invalidated
you'd invalidated
they'd invalidated	I'd been invalidating
you'd been invalidating
he'd been invalidating
we'd been invalidating
you'd been invalidating
they'd been invalidating	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll invalidate
you'll invalidate
he'll invalidate
we'll invalidate
you'll invalidate
they'll invalidate 	I'll be invalidating
you'll be invalidating
he'll be invalidating
we'll be invalidating
you'll be invalidating
they'll be invalidating	I'll have invalidated
you'll have invalidated
he'll have invalidated
we'll have invalidated
you'll have invalidated
they'll have invalidated	I'll have been invalidating
you'll have been invalidating
he'll have been invalidating
we'll have been invalidating
you'll have been invalidating
they'll have been invalidating	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd invalidate
you'd invalidate
he'd invalidate
we'd invalidate
you'd invalidate
they'd invalidate 	I'd be invalidating
you'd be invalidating
he'd be invalidating
we'd be invalidating
you'd be invalidating
they'd be invalidating	I'd have invalidated
you'd have invalidated
he'd have invalidated
we'd have invalidated
you'd have invalidated
they'd have invalidated	I'd have been invalidating
you'd have been invalidating
he'd have been invalidating
we'd have been invalidating
you'd have been invalidating
they'd have been invalidating	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to invalidate 	 	invalidate
Let's invalidate
invalidate 	 	

Participle 	
Present 	Past 	 	 	
invalidating	invalidated