English verb conjugation
CAN BLACKGUARD

Regular verb: blackguard - blackguarded - blackguarded

Affirmation

Simple form	V-ing form
I can blackguard you can blackguard she can blackguard we can blackguard you can blackguard they can blackguard	I can be blackguarding you can be blackguarding she can be blackguarding we can be blackguarding you can be blackguarding they can be blackguarding
Perfect	V-ing perfect
I can have blackguarded you can have blackguarded she can have blackguarded we can have blackguarded you can have blackguarded they can have blackguarded	I can have been blackguarding you can have been blackguarding she can have been blackguarding we can have been blackguarding you can have been blackguarding they can have been blackguarding

Negation

Simple form	V-ing form
I can't blackguard you can't blackguard she can't blackguard we can't blackguard you can't blackguard they can't blackguard	I can't be blackguarding you can't be blackguarding she can't be blackguarding we can't be blackguarding you can't be blackguarding they can't be blackguarding
Perfect	V-ing perfect
I can't have blackguarded you can't have blackguarded she can't have blackguarded we can't have blackguarded you can't have blackguarded they can't have blackguarded	I can't have been blackguarding you can't have been blackguarding she can't have been blackguarding we can't have been blackguarding you can't have been blackguarding they can't have been blackguarding

Interrogative form

Simple form	V-ing form
can I blackguard? can you blackguard? can she blackguard? can we blackguard? can you blackguard? can they blackguard?	can I be blackguarding? can you be blackguarding? can she be blackguarding? can we be blackguarding? can you be blackguarding? can they be blackguarding?
Perfect	V-ing perfect
can I have blackguarded? can you have blackguarded? can she have blackguarded? can we have blackguarded? can you have blackguarded? can they have blackguarded?	can I have been blackguarding? can you have been blackguarding? can she have been blackguarding? can we have been blackguarding? can you have been blackguarding? can they have been blackguarding?

Interro-negative form

Simple form	V-ing form
can't I blackguard? can't you blackguard? can't she blackguard? can't we blackguard? can't you blackguard? can't they blackguard?	can't I be blackguarding? can't you be blackguarding? can't she be blackguarding? can't we be blackguarding? can't you be blackguarding? can't they be blackguarding?
Perfect	V-ing perfect
can't I have blackguarded? can't you have blackguarded? can't she have blackguarded? can't we have blackguarded? can't you have blackguarded? can't they have blackguarded?	can't I have been blackguarding? can't you have been blackguarding? can't she have been blackguarding? can't we have been blackguarding? can't you have been blackguarding? can't they have been blackguarding?