could hydroplane
Verbo regular: hydroplane - hydroplaned- hydroplaned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could hydroplane
you could hydroplane
he could hydroplane
we could hydroplane
you could hydroplane
they could hydroplane 	I could be hydroplaning
you could be hydroplaning
he could be hydroplaning
we could be hydroplaning
you could be hydroplaning
they could be hydroplaning	I could have hydroplaned
you could have hydroplaned
he could have hydroplaned
we could have hydroplaned
you could have hydroplaned
they could have hydroplaned	I could have been hydroplaning
you could have been hydroplaning
he could have been hydroplaning
we could have been hydroplaning
you could have been hydroplaning
they could have been hydroplaning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't hydroplane
you couldn't hydroplane
he couldn't hydroplane
we couldn't hydroplane
you couldn't hydroplane
they couldn't hydroplane 	I couldn't be hydroplaning
you couldn't be hydroplaning
he couldn't be hydroplaning
we couldn't be hydroplaning
you couldn't be hydroplaning
they couldn't be hydroplaning	I couldn't have hydroplaned
you couldn't have hydroplaned
he couldn't have hydroplaned
we couldn't have hydroplaned
you couldn't have hydroplaned
they couldn't have hydroplaned	I couldn't have been hydroplaning
you couldn't have been hydroplaning
he couldn't have been hydroplaning
we couldn't have been hydroplaning
you couldn't have been hydroplaning
they couldn't have been hydroplaning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I hydroplane?
could you hydroplane?
could he hydroplane?
could we hydroplane?
could you hydroplane?
could they hydroplane? 	could I be hydroplaning?
could you be hydroplaning?
could he be hydroplaning?
could we be hydroplaning?
could you be hydroplaning?
could they be hydroplaning? 	could I have hydroplaned?
could you have hydroplaned?
could he have hydroplaned?
could we have hydroplaned?
could you have hydroplaned?
could they have hydroplaned? 	could I have been hydroplaning?
could you have been hydroplaning?
could he have been hydroplaning?
could we have been hydroplaning?
could you have been hydroplaning?
could they have been hydroplaning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I hydroplane?
couldn't you hydroplane?
couldn't he hydroplane?
couldn't we hydroplane?
couldn't you hydroplane?
couldn't they hydroplane? 	couldn't I be hydroplaning?
couldn't you be hydroplaning?
couldn't he be hydroplaning?
couldn't we be hydroplaning?
couldn't you be hydroplaning?
couldn't they be hydroplaning? 	couldn't I have hydroplaned?
couldn't you have hydroplaned?
couldn't he have hydroplaned?
couldn't we have hydroplaned?
couldn't you have hydroplaned?
couldn't they have hydroplaned? 	couldn't I have been hydroplaning?
couldn't you have been hydroplaning?
couldn't he have been hydroplaning?
couldn't we have been hydroplaning?
couldn't you have been hydroplaning?
couldn't they have been hydroplaning?