English verb conjugation
CAN TAR

Regular verb: tar - tarred - tarred

Affirmation

Simple form	V-ing form
I can tar you can tar she can tar we can tar you can tar they can tar	I can be tarring you can be tarring she can be tarring we can be tarring you can be tarring they can be tarring
Perfect	V-ing perfect
I can have tarred you can have tarred she can have tarred we can have tarred you can have tarred they can have tarred	I can have been tarring you can have been tarring she can have been tarring we can have been tarring you can have been tarring they can have been tarring

Negation

Simple form	V-ing form
I can't tar you can't tar she can't tar we can't tar you can't tar they can't tar	I can't be tarring you can't be tarring she can't be tarring we can't be tarring you can't be tarring they can't be tarring
Perfect	V-ing perfect
I can't have tarred you can't have tarred she can't have tarred we can't have tarred you can't have tarred they can't have tarred	I can't have been tarring you can't have been tarring she can't have been tarring we can't have been tarring you can't have been tarring they can't have been tarring

Interrogative form

Simple form	V-ing form
can I tar? can you tar? can she tar? can we tar? can you tar? can they tar?	can I be tarring? can you be tarring? can she be tarring? can we be tarring? can you be tarring? can they be tarring?
Perfect	V-ing perfect
can I have tarred? can you have tarred? can she have tarred? can we have tarred? can you have tarred? can they have tarred?	can I have been tarring? can you have been tarring? can she have been tarring? can we have been tarring? can you have been tarring? can they have been tarring?

Interro-negative form

Simple form	V-ing form
can't I tar? can't you tar? can't she tar? can't we tar? can't you tar? can't they tar?	can't I be tarring? can't you be tarring? can't she be tarring? can't we be tarring? can't you be tarring? can't they be tarring?
Perfect	V-ing perfect
can't I have tarred? can't you have tarred? can't she have tarred? can't we have tarred? can't you have tarred? can't they have tarred?	can't I have been tarring? can't you have been tarring? can't she have been tarring? can't we have been tarring? can't you have been tarring? can't they have been tarring?