could somnambulate
Regular verb: somnambulate - somnambulated- somnambulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could somnambulate
you could somnambulate
he could somnambulate
we could somnambulate
you could somnambulate
they could somnambulate 	I could be somnambulating
you could be somnambulating
he could be somnambulating
we could be somnambulating
you could be somnambulating
they could be somnambulating	I could have somnambulated
you could have somnambulated
he could have somnambulated
we could have somnambulated
you could have somnambulated
they could have somnambulated	I could have been somnambulating
you could have been somnambulating
he could have been somnambulating
we could have been somnambulating
you could have been somnambulating
they could have been somnambulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't somnambulate
you couldn't somnambulate
he couldn't somnambulate
we couldn't somnambulate
you couldn't somnambulate
they couldn't somnambulate 	I couldn't be somnambulating
you couldn't be somnambulating
he couldn't be somnambulating
we couldn't be somnambulating
you couldn't be somnambulating
they couldn't be somnambulating	I couldn't have somnambulated
you couldn't have somnambulated
he couldn't have somnambulated
we couldn't have somnambulated
you couldn't have somnambulated
they couldn't have somnambulated	I couldn't have been somnambulating
you couldn't have been somnambulating
he couldn't have been somnambulating
we couldn't have been somnambulating
you couldn't have been somnambulating
they couldn't have been somnambulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I somnambulate?
could you somnambulate?
could he somnambulate?
could we somnambulate?
could you somnambulate?
could they somnambulate? 	could I be somnambulating?
could you be somnambulating?
could he be somnambulating?
could we be somnambulating?
could you be somnambulating?
could they be somnambulating? 	could I have somnambulated?
could you have somnambulated?
could he have somnambulated?
could we have somnambulated?
could you have somnambulated?
could they have somnambulated? 	could I have been somnambulating?
could you have been somnambulating?
could he have been somnambulating?
could we have been somnambulating?
could you have been somnambulating?
could they have been somnambulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I somnambulate?
couldn't you somnambulate?
couldn't he somnambulate?
couldn't we somnambulate?
couldn't you somnambulate?
couldn't they somnambulate? 	couldn't I be somnambulating?
couldn't you be somnambulating?
couldn't he be somnambulating?
couldn't we be somnambulating?
couldn't you be somnambulating?
couldn't they be somnambulating? 	couldn't I have somnambulated?
couldn't you have somnambulated?
couldn't he have somnambulated?
couldn't we have somnambulated?
couldn't you have somnambulated?
couldn't they have somnambulated? 	couldn't I have been somnambulating?
couldn't you have been somnambulating?
couldn't he have been somnambulating?
couldn't we have been somnambulating?
couldn't you have been somnambulating?
couldn't they have been somnambulating?