Regular verb: billboard - billboarded - billboarded
Affirmation
Simple form
I can billboard you can billboard she can billboard we can billboard you can billboard they can billboard
V-ing form
I can be billboarding you can be billboarding she can be billboarding we can be billboarding you can be billboarding they can be billboarding
Perfect
I can have billboarded you can have billboarded she can have billboarded we can have billboarded you can have billboarded they can have billboarded
V-ing perfect
I can have been billboarding you can have been billboarding she can have been billboarding we can have been billboarding you can have been billboarding they can have been billboarding
Negation
Simple form
I can't billboard you can't billboard she can't billboard we can't billboard you can't billboard they can't billboard
V-ing form
I can't be billboarding you can't be billboarding she can't be billboarding we can't be billboarding you can't be billboarding they can't be billboarding
Perfect
I can't have billboarded you can't have billboarded she can't have billboarded we can't have billboarded you can't have billboarded they can't have billboarded
V-ing perfect
I can't have been billboarding you can't have been billboarding she can't have been billboarding we can't have been billboarding you can't have been billboarding they can't have been billboarding
Interrogative form
Simple form
can I billboard? can you billboard? can she billboard? can we billboard? can you billboard? can they billboard?
V-ing form
can I be billboarding? can you be billboarding? can she be billboarding? can we be billboarding? can you be billboarding? can they be billboarding?
Perfect
can I have billboarded? can you have billboarded? can she have billboarded? can we have billboarded? can you have billboarded? can they have billboarded?
V-ing perfect
can I have been billboarding? can you have been billboarding? can she have been billboarding? can we have been billboarding? can you have been billboarding? can they have been billboarding?
Interro-negative form
Simple form
can't I billboard? can't you billboard? can't she billboard? can't we billboard? can't you billboard? can't they billboard?
V-ing form
can't I be billboarding? can't you be billboarding? can't she be billboarding? can't we be billboarding? can't you be billboarding? can't they be billboarding?
Perfect
can't I have billboarded? can't you have billboarded? can't she have billboarded? can't we have billboarded? can't you have billboarded? can't they have billboarded?
V-ing perfect
can't I have been billboarding? can't you have been billboarding? can't she have been billboarding? can't we have been billboarding? can't you have been billboarding? can't they have been billboarding?