to invalidate
Regular verb: invalidate - invalidated- invalidated

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I don't invalidate
you don't invalidate
he doesn't invalidate
we don't invalidate
you don't invalidate
they don't invalidate 	I'mnot invalidating
youaren't invalidating
heisn't invalidating
wearen't invalidating
youaren't invalidating
theyaren't invalidating	I didn't invalidate
you didn't invalidate
he didn't invalidate
we didn't invalidate
you didn't invalidate
they didn't invalidate 	Iwasn't invalidating
youweren't invalidating
hewasn't invalidating
weweren't invalidating
youweren't invalidating
theyweren't invalidating	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I haven't invalidated
you haven't invalidated
he hasn't invalidated
we haven't invalidated
you haven't invalidated
they haven't invalidated	I haven't  been invalidating
you haven't  been invalidating
he hasn't  been invalidating
we haven't  been invalidating
you haven't  been invalidating
they haven't  been invalidating	I hadn't invalidated
you hadn't invalidated
he hadn't invalidated
we hadn't invalidated
you hadn't invalidated
they hadn't invalidated	I hadn't been invalidating
you hadn't been invalidating
he hadn't been invalidating
we hadn't been invalidating
you hadn't been invalidating
they hadn't been invalidating	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I won't invalidate
you won't invalidate
he won't invalidate
we won't invalidate
you won't invalidate
they won't invalidate 	I won't be invalidating
you won't be invalidating
he won't be invalidating
we won't be invalidating
you won't be invalidating
they won't be invalidating	I won't have invalidated
you won't have invalidated
he won't have invalidated
we won't have invalidated
you won't have invalidated
they won't have invalidated	I won't have been invalidating
you won't have been invalidating
he won't have been invalidating
we won't have been invalidating
you won't have been invalidating
they won't have been invalidating	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I wouldn't invalidate
you wouldn't invalidate
he wouldn't invalidate
we wouldn't invalidate
you wouldn't invalidate
they wouldn't invalidate 	I wouldn't be invalidating
you wouldn't be invalidating
he wouldn't be invalidating
we wouldn't be invalidating
you wouldn't be invalidating
they wouldn't be invalidating	I wouldn't have invalidated
you wouldn't have invalidated
he wouldn't have invalidated
we wouldn't have invalidated
you wouldn't have invalidated
they wouldn't have invalidated	I wouldn't have been invalidating
you wouldn't have been invalidating
he wouldn't have been invalidating
we wouldn't have been invalidating
you wouldn't have been invalidating
they wouldn't have been invalidating	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to invalidate 	 	do not invalidate
Let's not invalidate
do not invalidate 	 	

Participle 	
Present 	Past 	 	 	
invalidating	invalidated