English verb conjugation
COULD PADLOCK

Regular verb: padlock - padlocked - padlocked

Affirmation

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