could toggle
Regular verb: toggle - toggled- toggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could toggle
you could toggle
she could toggle
we could toggle
you could toggle
they could toggle 	I could be toggling
you could be toggling
she could be toggling
we could be toggling
you could be toggling
they could be toggling	I could have toggled
you could have toggled
she could have toggled
we could have toggled
you could have toggled
they could have toggled	I could have been toggling
you could have been toggling
she could have been toggling
we could have been toggling
you could have been toggling
they could have been toggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't toggle
you couldn't toggle
she couldn't toggle
we couldn't toggle
you couldn't toggle
they couldn't toggle 	I couldn't be toggling
you couldn't be toggling
she couldn't be toggling
we couldn't be toggling
you couldn't be toggling
they couldn't be toggling	I couldn't have toggled
you couldn't have toggled
she couldn't have toggled
we couldn't have toggled
you couldn't have toggled
they couldn't have toggled	I couldn't have been toggling
you couldn't have been toggling
she couldn't have been toggling
we couldn't have been toggling
you couldn't have been toggling
they couldn't have been toggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I toggle?
could you toggle?
could she toggle?
could we toggle?
could you toggle?
could they toggle? 	could I be toggling?
could you be toggling?
could she be toggling?
could we be toggling?
could you be toggling?
could they be toggling? 	could I have toggled?
could you have toggled?
could she have toggled?
could we have toggled?
could you have toggled?
could they have toggled? 	could I have been toggling?
could you have been toggling?
could she have been toggling?
could we have been toggling?
could you have been toggling?
could they have been toggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I toggle?
couldn't you toggle?
couldn't she toggle?
couldn't we toggle?
couldn't you toggle?
couldn't they toggle? 	couldn't I be toggling?
couldn't you be toggling?
couldn't she be toggling?
couldn't we be toggling?
couldn't you be toggling?
couldn't they be toggling? 	couldn't I have toggled?
couldn't you have toggled?
couldn't she have toggled?
couldn't we have toggled?
couldn't you have toggled?
couldn't they have toggled? 	couldn't I have been toggling?
couldn't you have been toggling?
couldn't she have been toggling?
couldn't we have been toggling?
couldn't you have been toggling?
couldn't they have been toggling?