can contaminate
Verbo regular: contaminate - contaminated- contaminated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can contaminate
you can contaminate
he can contaminate
we can contaminate
you can contaminate
they can contaminate 	I can be contaminating
you can be contaminating
he can be contaminating
we can be contaminating
you can be contaminating
they can be contaminating	I can have contaminated
you can have contaminated
he can have contaminated
we can have contaminated
you can have contaminated
they can have contaminated	I can have been contaminating
you can have been contaminating
he can have been contaminating
we can have been contaminating
you can have been contaminating
they can have been contaminating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot contaminate
you cannot contaminate
he cannot contaminate
we cannot contaminate
you cannot contaminate
they cannot contaminate 	I cannot be contaminating
you cannot be contaminating
he cannot be contaminating
we cannot be contaminating
you cannot be contaminating
they cannot be contaminating	I cannot have contaminated
you cannot have contaminated
he cannot have contaminated
we cannot have contaminated
you cannot have contaminated
they cannot have contaminated	I cannot have been contaminating
you cannot have been contaminating
he cannot have been contaminating
we cannot have been contaminating
you cannot have been contaminating
they cannot have been contaminating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I contaminate?
can you contaminate?
can he contaminate?
can we contaminate?
can you contaminate?
can they contaminate? 	can I be contaminating?
can you be contaminating?
can he be contaminating?
can we be contaminating?
can you be contaminating?
can they be contaminating? 	can I have contaminated?
can you have contaminated?
can he have contaminated?
can we have contaminated?
can you have contaminated?
can they have contaminated? 	can I have been contaminating?
can you have been contaminating?
can he have been contaminating?
can we have been contaminating?
can you have been contaminating?
can they have been contaminating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not contaminate?
can you not contaminate?
can he not contaminate?
can we not contaminate?
can you not contaminate?
can they not contaminate? 	can I not be contaminating?
can you not be contaminating?
can he not be contaminating?
can we not be contaminating?
can you not be contaminating?
can they not be contaminating? 	can I not have contaminated?
can you not have contaminated?
can he not have contaminated?
can we not have contaminated?
can you not have contaminated?
can they not have contaminated? 	can I not have been contaminating?
can you not have been contaminating?
can he not have been contaminating?
can we not have been contaminating?
can you not have been contaminating?
can they not have been contaminating?