can decrease
Verbo regular: decrease - decreased- decreased

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can decrease
you can decrease
she can decrease
we can decrease
you can decrease
they can decrease 	I can be decreasing
you can be decreasing
she can be decreasing
we can be decreasing
you can be decreasing
they can be decreasing	I can have decreased
you can have decreased
she can have decreased
we can have decreased
you can have decreased
they can have decreased	I can have been decreasing
you can have been decreasing
she can have been decreasing
we can have been decreasing
you can have been decreasing
they can have been decreasing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot decrease
you cannot decrease
she cannot decrease
we cannot decrease
you cannot decrease
they cannot decrease 	I cannot be decreasing
you cannot be decreasing
she cannot be decreasing
we cannot be decreasing
you cannot be decreasing
they cannot be decreasing	I cannot have decreased
you cannot have decreased
she cannot have decreased
we cannot have decreased
you cannot have decreased
they cannot have decreased	I cannot have been decreasing
you cannot have been decreasing
she cannot have been decreasing
we cannot have been decreasing
you cannot have been decreasing
they cannot have been decreasing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I decrease?
can you decrease?
can she decrease?
can we decrease?
can you decrease?
can they decrease? 	can I be decreasing?
can you be decreasing?
can she be decreasing?
can we be decreasing?
can you be decreasing?
can they be decreasing? 	can I have decreased?
can you have decreased?
can she have decreased?
can we have decreased?
can you have decreased?
can they have decreased? 	can I have been decreasing?
can you have been decreasing?
can she have been decreasing?
can we have been decreasing?
can you have been decreasing?
can they have been decreasing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not decrease?
can you not decrease?
can she not decrease?
can we not decrease?
can you not decrease?
can they not decrease? 	can I not be decreasing?
can you not be decreasing?
can she not be decreasing?
can we not be decreasing?
can you not be decreasing?
can they not be decreasing? 	can I not have decreased?
can you not have decreased?
can she not have decreased?
can we not have decreased?
can you not have decreased?
can they not have decreased? 	can I not have been decreasing?
can you not have been decreasing?
can she not have been decreasing?
can we not have been decreasing?
can you not have been decreasing?
can they not have been decreasing?