could padlock
Regular verb: padlock - padlocked- padlocked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could padlock
you could padlock
she could padlock
we could padlock
you could padlock
they could padlock 	I could be padlocking
you could be padlocking
she could be padlocking
we could be padlocking
you could be padlocking
they could be padlocking	I could have padlocked
you could have padlocked
she could have padlocked
we could have padlocked
you could have padlocked
they could have padlocked	I could have been padlocking
you could have been padlocking
she could have been padlocking
we could have been padlocking
you could have been padlocking
they could have been padlocking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not padlock
you could not padlock
she could not padlock
we could not padlock
you could not padlock
they could not padlock 	I could not be padlocking
you could not be padlocking
she could not be padlocking
we could not be padlocking
you could not be padlocking
they could not be padlocking	I could not have padlocked
you could not have padlocked
she could not have padlocked
we could not have padlocked
you could not have padlocked
they could not have padlocked	I could not have been padlocking
you could not have been padlocking
she could not have been padlocking
we could not have been padlocking
you could not have been padlocking
they could not have been padlocking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I padlock?
could you padlock?
could she padlock?
could we padlock?
could you padlock?
could they padlock? 	could I be padlocking?
could you be padlocking?
could she be padlocking?
could we be padlocking?
could you be padlocking?
could they be padlocking? 	could I have padlocked?
could you have padlocked?
could she have padlocked?
could we have padlocked?
could you have padlocked?
could they have padlocked? 	could I have been padlocking?
could you have been padlocking?
could she have been padlocking?
could we have been padlocking?
could you have been padlocking?
could they have been padlocking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not padlock?
could you not padlock?
could she not padlock?
could we not padlock?
could you not padlock?
could they not padlock? 	could I not be padlocking?
could you not be padlocking?
could she not be padlocking?
could we not be padlocking?
could you not be padlocking?
could they not be padlocking? 	could I not have padlocked?
could you not have padlocked?
could she not have padlocked?
could we not have padlocked?
could you not have padlocked?
could they not have padlocked? 	could I not have been padlocking?
could you not have been padlocking?
could she not have been padlocking?
could we not have been padlocking?
could you not have been padlocking?
could they not have been padlocking?