English verb conjugation
CAN MOUTH

Regular verb: mouth - mouthed - mouthed

Affirmation

Simple form	V-ing form
I can mouth you can mouth he can mouth we can mouth you can mouth they can mouth	I can be mouthing you can be mouthing he can be mouthing we can be mouthing you can be mouthing they can be mouthing
Perfect	V-ing perfect
I can have mouthed you can have mouthed he can have mouthed we can have mouthed you can have mouthed they can have mouthed	I can have been mouthing you can have been mouthing he can have been mouthing we can have been mouthing you can have been mouthing they can have been mouthing

Negation

Simple form	V-ing form
I can't mouth you can't mouth he can't mouth we can't mouth you can't mouth they can't mouth	I can't be mouthing you can't be mouthing he can't be mouthing we can't be mouthing you can't be mouthing they can't be mouthing
Perfect	V-ing perfect
I can't have mouthed you can't have mouthed he can't have mouthed we can't have mouthed you can't have mouthed they can't have mouthed	I can't have been mouthing you can't have been mouthing he can't have been mouthing we can't have been mouthing you can't have been mouthing they can't have been mouthing

Interrogative form

Simple form	V-ing form
can I mouth? can you mouth? can he mouth? can we mouth? can you mouth? can they mouth?	can I be mouthing? can you be mouthing? can he be mouthing? can we be mouthing? can you be mouthing? can they be mouthing?
Perfect	V-ing perfect
can I have mouthed? can you have mouthed? can he have mouthed? can we have mouthed? can you have mouthed? can they have mouthed?	can I have been mouthing? can you have been mouthing? can he have been mouthing? can we have been mouthing? can you have been mouthing? can they have been mouthing?

Interro-negative form

Simple form	V-ing form
can't I mouth? can't you mouth? can't he mouth? can't we mouth? can't you mouth? can't they mouth?	can't I be mouthing? can't you be mouthing? can't he be mouthing? can't we be mouthing? can't you be mouthing? can't they be mouthing?
Perfect	V-ing perfect
can't I have mouthed? can't you have mouthed? can't he have mouthed? can't we have mouthed? can't you have mouthed? can't they have mouthed?	can't I have been mouthing? can't you have been mouthing? can't he have been mouthing? can't we have been mouthing? can't you have been mouthing? can't they have been mouthing?