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 can't teethe you can't teethe he can't teethe we can't teethe you can't teethe they can't teethe	I can't be teething you can't be teething he can't be teething we can't be teething you can't be teething they can't be teething
Perfect	V-ing perfect
I can't have teethed you can't have teethed he can't have teethed we can't have teethed you can't have teethed they can't have teethed	I can't have been teething you can't have been teething he can't have been teething we can't have been teething you can't have been teething they can't 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't I teethe? can't you teethe? can't he teethe? can't we teethe? can't you teethe? can't they teethe?	can't I be teething? can't you be teething? can't he be teething? can't we be teething? can't you be teething? can't they be teething?
Perfect	V-ing perfect
can't I have teethed? can't you have teethed? can't he have teethed? can't we have teethed? can't you have teethed? can't they have teethed?	can't I have been teething? can't you have been teething? can't he have been teething? can't we have been teething? can't you have been teething? can't they have been teething?