English verb conjugation
CAN PITH

Regular verb: pith - pithed - pithed

Affirmation

Simple form	V-ing form
I can pith you can pith he can pith we can pith you can pith they can pith	I can be pithing you can be pithing he can be pithing we can be pithing you can be pithing they can be pithing
Perfect	V-ing perfect
I can have pithed you can have pithed he can have pithed we can have pithed you can have pithed they can have pithed	I can have been pithing you can have been pithing he can have been pithing we can have been pithing you can have been pithing they can have been pithing

Negation

Simple form	V-ing form
I can't pith you can't pith he can't pith we can't pith you can't pith they can't pith	I can't be pithing you can't be pithing he can't be pithing we can't be pithing you can't be pithing they can't be pithing
Perfect	V-ing perfect
I can't have pithed you can't have pithed he can't have pithed we can't have pithed you can't have pithed they can't have pithed	I can't have been pithing you can't have been pithing he can't have been pithing we can't have been pithing you can't have been pithing they can't have been pithing

Interrogative form

Simple form	V-ing form
can I pith? can you pith? can he pith? can we pith? can you pith? can they pith?	can I be pithing? can you be pithing? can he be pithing? can we be pithing? can you be pithing? can they be pithing?
Perfect	V-ing perfect
can I have pithed? can you have pithed? can he have pithed? can we have pithed? can you have pithed? can they have pithed?	can I have been pithing? can you have been pithing? can he have been pithing? can we have been pithing? can you have been pithing? can they have been pithing?

Interro-negative form

Simple form	V-ing form
can't I pith? can't you pith? can't he pith? can't we pith? can't you pith? can't they pith?	can't I be pithing? can't you be pithing? can't he be pithing? can't we be pithing? can't you be pithing? can't they be pithing?
Perfect	V-ing perfect
can't I have pithed? can't you have pithed? can't he have pithed? can't we have pithed? can't you have pithed? can't they have pithed?	can't I have been pithing? can't you have been pithing? can't he have been pithing? can't we have been pithing? can't you have been pithing? can't they have been pithing?