could ruck
Regular verb: ruck - rucked- rucked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could ruck
you could ruck
he could ruck
we could ruck
you could ruck
they could ruck 	I could be rucking
you could be rucking
he could be rucking
we could be rucking
you could be rucking
they could be rucking	I could have rucked
you could have rucked
he could have rucked
we could have rucked
you could have rucked
they could have rucked	I could have been rucking
you could have been rucking
he could have been rucking
we could have been rucking
you could have been rucking
they could have been rucking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't ruck
you couldn't ruck
he couldn't ruck
we couldn't ruck
you couldn't ruck
they couldn't ruck 	I couldn't be rucking
you couldn't be rucking
he couldn't be rucking
we couldn't be rucking
you couldn't be rucking
they couldn't be rucking	I couldn't have rucked
you couldn't have rucked
he couldn't have rucked
we couldn't have rucked
you couldn't have rucked
they couldn't have rucked	I couldn't have been rucking
you couldn't have been rucking
he couldn't have been rucking
we couldn't have been rucking
you couldn't have been rucking
they couldn't have been rucking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I ruck?
could you ruck?
could he ruck?
could we ruck?
could you ruck?
could they ruck? 	could I be rucking?
could you be rucking?
could he be rucking?
could we be rucking?
could you be rucking?
could they be rucking? 	could I have rucked?
could you have rucked?
could he have rucked?
could we have rucked?
could you have rucked?
could they have rucked? 	could I have been rucking?
could you have been rucking?
could he have been rucking?
could we have been rucking?
could you have been rucking?
could they have been rucking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I ruck?
couldn't you ruck?
couldn't he ruck?
couldn't we ruck?
couldn't you ruck?
couldn't they ruck? 	couldn't I be rucking?
couldn't you be rucking?
couldn't he be rucking?
couldn't we be rucking?
couldn't you be rucking?
couldn't they be rucking? 	couldn't I have rucked?
couldn't you have rucked?
couldn't he have rucked?
couldn't we have rucked?
couldn't you have rucked?
couldn't they have rucked? 	couldn't I have been rucking?
couldn't you have been rucking?
couldn't he have been rucking?
couldn't we have been rucking?
couldn't you have been rucking?
couldn't they have been rucking?