can gridlock
Regular verb: gridlock - gridlocked- gridlocked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can gridlock
you can gridlock
he can gridlock
we can gridlock
you can gridlock
they can gridlock 	I can be gridlocking
you can be gridlocking
he can be gridlocking
we can be gridlocking
you can be gridlocking
they can be gridlocking	I can have gridlocked
you can have gridlocked
he can have gridlocked
we can have gridlocked
you can have gridlocked
they can have gridlocked	I can have been gridlocking
you can have been gridlocking
he can have been gridlocking
we can have been gridlocking
you can have been gridlocking
they can have been gridlocking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't gridlock
you can't gridlock
he can't gridlock
we can't gridlock
you can't gridlock
they can't gridlock 	I can't be gridlocking
you can't be gridlocking
he can't be gridlocking
we can't be gridlocking
you can't be gridlocking
they can't be gridlocking	I can't have gridlocked
you can't have gridlocked
he can't have gridlocked
we can't have gridlocked
you can't have gridlocked
they can't have gridlocked	I can't have been gridlocking
you can't have been gridlocking
he can't have been gridlocking
we can't have been gridlocking
you can't have been gridlocking
they can't have been gridlocking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I gridlock?
can you gridlock?
can he gridlock?
can we gridlock?
can you gridlock?
can they gridlock? 	can I be gridlocking?
can you be gridlocking?
can he be gridlocking?
can we be gridlocking?
can you be gridlocking?
can they be gridlocking? 	can I have gridlocked?
can you have gridlocked?
can he have gridlocked?
can we have gridlocked?
can you have gridlocked?
can they have gridlocked? 	can I have been gridlocking?
can you have been gridlocking?
can he have been gridlocking?
can we have been gridlocking?
can you have been gridlocking?
can they have been gridlocking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I gridlock?
can't you gridlock?
can't he gridlock?
can't we gridlock?
can't you gridlock?
can't they gridlock? 	can't I be gridlocking?
can't you be gridlocking?
can't he be gridlocking?
can't we be gridlocking?
can't you be gridlocking?
can't they be gridlocking? 	can't I have gridlocked?
can't you have gridlocked?
can't he have gridlocked?
can't we have gridlocked?
can't you have gridlocked?
can't they have gridlocked? 	can't I have been gridlocking?
can't you have been gridlocking?
can't he have been gridlocking?
can't we have been gridlocking?
can't you have been gridlocking?
can't they have been gridlocking?