could pine
Verbo regular: pine - pined- pined

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could pine
you could pine
he could pine
we could pine
you could pine
they could pine 	I could be pining
you could be pining
he could be pining
we could be pining
you could be pining
they could be pining	I could have pined
you could have pined
he could have pined
we could have pined
you could have pined
they could have pined	I could have been pining
you could have been pining
he could have been pining
we could have been pining
you could have been pining
they could have been pining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't pine
you couldn't pine
he couldn't pine
we couldn't pine
you couldn't pine
they couldn't pine 	I couldn't be pining
you couldn't be pining
he couldn't be pining
we couldn't be pining
you couldn't be pining
they couldn't be pining	I couldn't have pined
you couldn't have pined
he couldn't have pined
we couldn't have pined
you couldn't have pined
they couldn't have pined	I couldn't have been pining
you couldn't have been pining
he couldn't have been pining
we couldn't have been pining
you couldn't have been pining
they couldn't have been pining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I pine?
could you pine?
could he pine?
could we pine?
could you pine?
could they pine? 	could I be pining?
could you be pining?
could he be pining?
could we be pining?
could you be pining?
could they be pining? 	could I have pined?
could you have pined?
could he have pined?
could we have pined?
could you have pined?
could they have pined? 	could I have been pining?
could you have been pining?
could he have been pining?
could we have been pining?
could you have been pining?
could they have been pining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I pine?
couldn't you pine?
couldn't he pine?
couldn't we pine?
couldn't you pine?
couldn't they pine? 	couldn't I be pining?
couldn't you be pining?
couldn't he be pining?
couldn't we be pining?
couldn't you be pining?
couldn't they be pining? 	couldn't I have pined?
couldn't you have pined?
couldn't he have pined?
couldn't we have pined?
couldn't you have pined?
couldn't they have pined? 	couldn't I have been pining?
couldn't you have been pining?
couldn't he have been pining?
couldn't we have been pining?
couldn't you have been pining?
couldn't they have been pining?