could moan
Verbo regular: moan - moaned- moaned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could moan
you could moan
he could moan
we could moan
you could moan
they could moan 	I could be moaning
you could be moaning
he could be moaning
we could be moaning
you could be moaning
they could be moaning	I could have moaned
you could have moaned
he could have moaned
we could have moaned
you could have moaned
they could have moaned	I could have been moaning
you could have been moaning
he could have been moaning
we could have been moaning
you could have been moaning
they could have been moaning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't moan
you couldn't moan
he couldn't moan
we couldn't moan
you couldn't moan
they couldn't moan 	I couldn't be moaning
you couldn't be moaning
he couldn't be moaning
we couldn't be moaning
you couldn't be moaning
they couldn't be moaning	I couldn't have moaned
you couldn't have moaned
he couldn't have moaned
we couldn't have moaned
you couldn't have moaned
they couldn't have moaned	I couldn't have been moaning
you couldn't have been moaning
he couldn't have been moaning
we couldn't have been moaning
you couldn't have been moaning
they couldn't have been moaning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I moan?
could you moan?
could he moan?
could we moan?
could you moan?
could they moan? 	could I be moaning?
could you be moaning?
could he be moaning?
could we be moaning?
could you be moaning?
could they be moaning? 	could I have moaned?
could you have moaned?
could he have moaned?
could we have moaned?
could you have moaned?
could they have moaned? 	could I have been moaning?
could you have been moaning?
could he have been moaning?
could we have been moaning?
could you have been moaning?
could they have been moaning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I moan?
couldn't you moan?
couldn't he moan?
couldn't we moan?
couldn't you moan?
couldn't they moan? 	couldn't I be moaning?
couldn't you be moaning?
couldn't he be moaning?
couldn't we be moaning?
couldn't you be moaning?
couldn't they be moaning? 	couldn't I have moaned?
couldn't you have moaned?
couldn't he have moaned?
couldn't we have moaned?
couldn't you have moaned?
couldn't they have moaned? 	couldn't I have been moaning?
couldn't you have been moaning?
couldn't he have been moaning?
couldn't we have been moaning?
couldn't you have been moaning?
couldn't they have been moaning?