could waken
Regular verb: waken - wakened- wakened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could waken
you could waken
he could waken
we could waken
you could waken
they could waken 	I could be wakening
you could be wakening
he could be wakening
we could be wakening
you could be wakening
they could be wakening	I could have wakened
you could have wakened
he could have wakened
we could have wakened
you could have wakened
they could have wakened	I could have been wakening
you could have been wakening
he could have been wakening
we could have been wakening
you could have been wakening
they could have been wakening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't waken
you couldn't waken
he couldn't waken
we couldn't waken
you couldn't waken
they couldn't waken 	I couldn't be wakening
you couldn't be wakening
he couldn't be wakening
we couldn't be wakening
you couldn't be wakening
they couldn't be wakening	I couldn't have wakened
you couldn't have wakened
he couldn't have wakened
we couldn't have wakened
you couldn't have wakened
they couldn't have wakened	I couldn't have been wakening
you couldn't have been wakening
he couldn't have been wakening
we couldn't have been wakening
you couldn't have been wakening
they couldn't have been wakening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I waken?
could you waken?
could he waken?
could we waken?
could you waken?
could they waken? 	could I be wakening?
could you be wakening?
could he be wakening?
could we be wakening?
could you be wakening?
could they be wakening? 	could I have wakened?
could you have wakened?
could he have wakened?
could we have wakened?
could you have wakened?
could they have wakened? 	could I have been wakening?
could you have been wakening?
could he have been wakening?
could we have been wakening?
could you have been wakening?
could they have been wakening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I waken?
couldn't you waken?
couldn't he waken?
couldn't we waken?
couldn't you waken?
couldn't they waken? 	couldn't I be wakening?
couldn't you be wakening?
couldn't he be wakening?
couldn't we be wakening?
couldn't you be wakening?
couldn't they be wakening? 	couldn't I have wakened?
couldn't you have wakened?
couldn't he have wakened?
couldn't we have wakened?
couldn't you have wakened?
couldn't they have wakened? 	couldn't I have been wakening?
couldn't you have been wakening?
couldn't he have been wakening?
couldn't we have been wakening?
couldn't you have been wakening?
couldn't they have been wakening?