English verb conjugation
CAN TEETHE

Regular verb: teethe - teethed - teethed

Affirmation

Simple form	V-ing form
I can teethe you can teethe he can teethe we can teethe you can teethe they can teethe	I can be teething you can be teething he can be teething we can be teething you can be teething they can be teething
Perfect	V-ing perfect
I can have teethed you can have teethed he can have teethed we can have teethed you can have teethed they can have teethed	I can have been teething you can have been teething he can have been teething we can have been teething you can have been teething they can have been teething

Negation

Simple form	V-ing form
I cannot teethe you cannot teethe he cannot teethe we cannot teethe you cannot teethe they cannot teethe	I cannot be teething you cannot be teething he cannot be teething we cannot be teething you cannot be teething they cannot be teething
Perfect	V-ing perfect
I cannot have teethed you cannot have teethed he cannot have teethed we cannot have teethed you cannot have teethed they cannot have teethed	I cannot have been teething you cannot have been teething he cannot have been teething we cannot have been teething you cannot have been teething they cannot have been teething

Interrogative form

Simple form	V-ing form
can I teethe? can you teethe? can he teethe? can we teethe? can you teethe? can they teethe?	can I be teething? can you be teething? can he be teething? can we be teething? can you be teething? can they be teething?
Perfect	V-ing perfect
can I have teethed? can you have teethed? can he have teethed? can we have teethed? can you have teethed? can they have teethed?	can I have been teething? can you have been teething? can he have been teething? can we have been teething? can you have been teething? can they have been teething?

Interro-negative form

Simple form	V-ing form
can I not teethe? can you not teethe? can he not teethe? can we not teethe? can you not teethe? can they not teethe?	can I not be teething? can you not be teething? can he not be teething? can we not be teething? can you not be teething? can they not be teething?
Perfect	V-ing perfect
can I not have teethed? can you not have teethed? can he not have teethed? can we not have teethed? can you not have teethed? can they not have teethed?	can I not have been teething? can you not have been teething? can he not have been teething? can we not have been teething? can you not have been teething? can they not have been teething?