could test-drive
Irregular verb: test-drive - test-drove- test-driven

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could test-drive
you could test-drive
she could test-drive
we could test-drive
you could test-drive
they could test-drive 	I could be test-driving
you could be test-driving
she could be test-driving
we could be test-driving
you could be test-driving
they could be test-driving	I could have test-driven
you could have test-driven
she could have test-driven
we could have test-driven
you could have test-driven
they could have test-driven	I could have been test-driving
you could have been test-driving
she could have been test-driving
we could have been test-driving
you could have been test-driving
they could have been test-driving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't test-drive
you couldn't test-drive
she couldn't test-drive
we couldn't test-drive
you couldn't test-drive
they couldn't test-drive 	I couldn't be test-driving
you couldn't be test-driving
she couldn't be test-driving
we couldn't be test-driving
you couldn't be test-driving
they couldn't be test-driving	I couldn't have test-driven
you couldn't have test-driven
she couldn't have test-driven
we couldn't have test-driven
you couldn't have test-driven
they couldn't have test-driven	I couldn't have been test-driving
you couldn't have been test-driving
she couldn't have been test-driving
we couldn't have been test-driving
you couldn't have been test-driving
they couldn't have been test-driving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I test-drive?
could you test-drive?
could she test-drive?
could we test-drive?
could you test-drive?
could they test-drive? 	could I be test-driving?
could you be test-driving?
could she be test-driving?
could we be test-driving?
could you be test-driving?
could they be test-driving? 	could I have test-driven?
could you have test-driven?
could she have test-driven?
could we have test-driven?
could you have test-driven?
could they have test-driven? 	could I have been test-driving?
could you have been test-driving?
could she have been test-driving?
could we have been test-driving?
could you have been test-driving?
could they have been test-driving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I test-drive?
couldn't you test-drive?
couldn't she test-drive?
couldn't we test-drive?
couldn't you test-drive?
couldn't they test-drive? 	couldn't I be test-driving?
couldn't you be test-driving?
couldn't she be test-driving?
couldn't we be test-driving?
couldn't you be test-driving?
couldn't they be test-driving? 	couldn't I have test-driven?
couldn't you have test-driven?
couldn't she have test-driven?
couldn't we have test-driven?
couldn't you have test-driven?
couldn't they have test-driven? 	couldn't I have been test-driving?
couldn't you have been test-driving?
couldn't she have been test-driving?
couldn't we have been test-driving?
couldn't you have been test-driving?
couldn't they have been test-driving?