could perspire
Verbo regular: perspire - perspired- perspired

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could perspire
you could perspire
he could perspire
we could perspire
you could perspire
they could perspire 	I could be perspiring
you could be perspiring
he could be perspiring
we could be perspiring
you could be perspiring
they could be perspiring	I could have perspired
you could have perspired
he could have perspired
we could have perspired
you could have perspired
they could have perspired	I could have been perspiring
you could have been perspiring
he could have been perspiring
we could have been perspiring
you could have been perspiring
they could have been perspiring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't perspire
you couldn't perspire
he couldn't perspire
we couldn't perspire
you couldn't perspire
they couldn't perspire 	I couldn't be perspiring
you couldn't be perspiring
he couldn't be perspiring
we couldn't be perspiring
you couldn't be perspiring
they couldn't be perspiring	I couldn't have perspired
you couldn't have perspired
he couldn't have perspired
we couldn't have perspired
you couldn't have perspired
they couldn't have perspired	I couldn't have been perspiring
you couldn't have been perspiring
he couldn't have been perspiring
we couldn't have been perspiring
you couldn't have been perspiring
they couldn't have been perspiring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I perspire?
could you perspire?
could he perspire?
could we perspire?
could you perspire?
could they perspire? 	could I be perspiring?
could you be perspiring?
could he be perspiring?
could we be perspiring?
could you be perspiring?
could they be perspiring? 	could I have perspired?
could you have perspired?
could he have perspired?
could we have perspired?
could you have perspired?
could they have perspired? 	could I have been perspiring?
could you have been perspiring?
could he have been perspiring?
could we have been perspiring?
could you have been perspiring?
could they have been perspiring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I perspire?
couldn't you perspire?
couldn't he perspire?
couldn't we perspire?
couldn't you perspire?
couldn't they perspire? 	couldn't I be perspiring?
couldn't you be perspiring?
couldn't he be perspiring?
couldn't we be perspiring?
couldn't you be perspiring?
couldn't they be perspiring? 	couldn't I have perspired?
couldn't you have perspired?
couldn't he have perspired?
couldn't we have perspired?
couldn't you have perspired?
couldn't they have perspired? 	couldn't I have been perspiring?
couldn't you have been perspiring?
couldn't he have been perspiring?
couldn't we have been perspiring?
couldn't you have been perspiring?
couldn't they have been perspiring?