can stagnate
Verbo regular: stagnate - stagnated- stagnated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can stagnate
you can stagnate
she can stagnate
we can stagnate
you can stagnate
they can stagnate 	I can be stagnating
you can be stagnating
she can be stagnating
we can be stagnating
you can be stagnating
they can be stagnating	I can have stagnated
you can have stagnated
she can have stagnated
we can have stagnated
you can have stagnated
they can have stagnated	I can have been stagnating
you can have been stagnating
she can have been stagnating
we can have been stagnating
you can have been stagnating
they can have been stagnating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot stagnate
you cannot stagnate
she cannot stagnate
we cannot stagnate
you cannot stagnate
they cannot stagnate 	I cannot be stagnating
you cannot be stagnating
she cannot be stagnating
we cannot be stagnating
you cannot be stagnating
they cannot be stagnating	I cannot have stagnated
you cannot have stagnated
she cannot have stagnated
we cannot have stagnated
you cannot have stagnated
they cannot have stagnated	I cannot have been stagnating
you cannot have been stagnating
she cannot have been stagnating
we cannot have been stagnating
you cannot have been stagnating
they cannot have been stagnating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I stagnate?
can you stagnate?
can she stagnate?
can we stagnate?
can you stagnate?
can they stagnate? 	can I be stagnating?
can you be stagnating?
can she be stagnating?
can we be stagnating?
can you be stagnating?
can they be stagnating? 	can I have stagnated?
can you have stagnated?
can she have stagnated?
can we have stagnated?
can you have stagnated?
can they have stagnated? 	can I have been stagnating?
can you have been stagnating?
can she have been stagnating?
can we have been stagnating?
can you have been stagnating?
can they have been stagnating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not stagnate?
can you not stagnate?
can she not stagnate?
can we not stagnate?
can you not stagnate?
can they not stagnate? 	can I not be stagnating?
can you not be stagnating?
can she not be stagnating?
can we not be stagnating?
can you not be stagnating?
can they not be stagnating? 	can I not have stagnated?
can you not have stagnated?
can she not have stagnated?
can we not have stagnated?
can you not have stagnated?
can they not have stagnated? 	can I not have been stagnating?
can you not have been stagnating?
can she not have been stagnating?
can we not have been stagnating?
can you not have been stagnating?
can they not have been stagnating?