could double-quick
Regular verb: double-quick - double-quicked- double-quicked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could double-quick
you could double-quick
he could double-quick
we could double-quick
you could double-quick
they could double-quick 	I could be double-quicking
you could be double-quicking
he could be double-quicking
we could be double-quicking
you could be double-quicking
they could be double-quicking	I could have double-quicked
you could have double-quicked
he could have double-quicked
we could have double-quicked
you could have double-quicked
they could have double-quicked	I could have been double-quicking
you could have been double-quicking
he could have been double-quicking
we could have been double-quicking
you could have been double-quicking
they could have been double-quicking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't double-quick
you couldn't double-quick
he couldn't double-quick
we couldn't double-quick
you couldn't double-quick
they couldn't double-quick 	I couldn't be double-quicking
you couldn't be double-quicking
he couldn't be double-quicking
we couldn't be double-quicking
you couldn't be double-quicking
they couldn't be double-quicking	I couldn't have double-quicked
you couldn't have double-quicked
he couldn't have double-quicked
we couldn't have double-quicked
you couldn't have double-quicked
they couldn't have double-quicked	I couldn't have been double-quicking
you couldn't have been double-quicking
he couldn't have been double-quicking
we couldn't have been double-quicking
you couldn't have been double-quicking
they couldn't have been double-quicking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I double-quick?
could you double-quick?
could he double-quick?
could we double-quick?
could you double-quick?
could they double-quick? 	could I be double-quicking?
could you be double-quicking?
could he be double-quicking?
could we be double-quicking?
could you be double-quicking?
could they be double-quicking? 	could I have double-quicked?
could you have double-quicked?
could he have double-quicked?
could we have double-quicked?
could you have double-quicked?
could they have double-quicked? 	could I have been double-quicking?
could you have been double-quicking?
could he have been double-quicking?
could we have been double-quicking?
could you have been double-quicking?
could they have been double-quicking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I double-quick?
couldn't you double-quick?
couldn't he double-quick?
couldn't we double-quick?
couldn't you double-quick?
couldn't they double-quick? 	couldn't I be double-quicking?
couldn't you be double-quicking?
couldn't he be double-quicking?
couldn't we be double-quicking?
couldn't you be double-quicking?
couldn't they be double-quicking? 	couldn't I have double-quicked?
couldn't you have double-quicked?
couldn't he have double-quicked?
couldn't we have double-quicked?
couldn't you have double-quicked?
couldn't they have double-quicked? 	couldn't I have been double-quicking?
couldn't you have been double-quicking?
couldn't he have been double-quicking?
couldn't we have been double-quicking?
couldn't you have been double-quicking?
couldn't they have been double-quicking?