can invalidate
Verbo regolare: invalidate - invalidated- invalidated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can invalidate
you can invalidate
he can invalidate
we can invalidate
you can invalidate
they can invalidate 	I can be invalidating
you can be invalidating
he can be invalidating
we can be invalidating
you can be invalidating
they can be invalidating	I can have invalidated
you can have invalidated
he can have invalidated
we can have invalidated
you can have invalidated
they can have invalidated	I can have been invalidating
you can have been invalidating
he can have been invalidating
we can have been invalidating
you can have been invalidating
they can have been invalidating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot invalidate
you cannot invalidate
he cannot invalidate
we cannot invalidate
you cannot invalidate
they cannot invalidate 	I cannot be invalidating
you cannot be invalidating
he cannot be invalidating
we cannot be invalidating
you cannot be invalidating
they cannot be invalidating	I cannot have invalidated
you cannot have invalidated
he cannot have invalidated
we cannot have invalidated
you cannot have invalidated
they cannot have invalidated	I cannot have been invalidating
you cannot have been invalidating
he cannot have been invalidating
we cannot have been invalidating
you cannot have been invalidating
they cannot have been invalidating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I invalidate?
can you invalidate?
can he invalidate?
can we invalidate?
can you invalidate?
can they invalidate? 	can I be invalidating?
can you be invalidating?
can he be invalidating?
can we be invalidating?
can you be invalidating?
can they be invalidating? 	can I have invalidated?
can you have invalidated?
can he have invalidated?
can we have invalidated?
can you have invalidated?
can they have invalidated? 	can I have been invalidating?
can you have been invalidating?
can he have been invalidating?
can we have been invalidating?
can you have been invalidating?
can they have been invalidating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not invalidate?
can you not invalidate?
can he not invalidate?
can we not invalidate?
can you not invalidate?
can they not invalidate? 	can I not be invalidating?
can you not be invalidating?
can he not be invalidating?
can we not be invalidating?
can you not be invalidating?
can they not be invalidating? 	can I not have invalidated?
can you not have invalidated?
can he not have invalidated?
can we not have invalidated?
can you not have invalidated?
can they not have invalidated? 	can I not have been invalidating?
can you not have been invalidating?
can he not have been invalidating?
can we not have been invalidating?
can you not have been invalidating?
can they not have been invalidating?