English verb conjugation
CAN STOCKPILE

Regular verb: stockpile - stockpiled - stockpiled

Affirmation

Simple form	V-ing form
I can stockpile you can stockpile he can stockpile we can stockpile you can stockpile they can stockpile	I can be stockpiling you can be stockpiling he can be stockpiling we can be stockpiling you can be stockpiling they can be stockpiling
Perfect	V-ing perfect
I can have stockpiled you can have stockpiled he can have stockpiled we can have stockpiled you can have stockpiled they can have stockpiled	I can have been stockpiling you can have been stockpiling he can have been stockpiling we can have been stockpiling you can have been stockpiling they can have been stockpiling

Negation

Simple form	V-ing form
I can't stockpile you can't stockpile he can't stockpile we can't stockpile you can't stockpile they can't stockpile	I can't be stockpiling you can't be stockpiling he can't be stockpiling we can't be stockpiling you can't be stockpiling they can't be stockpiling
Perfect	V-ing perfect
I can't have stockpiled you can't have stockpiled he can't have stockpiled we can't have stockpiled you can't have stockpiled they can't have stockpiled	I can't have been stockpiling you can't have been stockpiling he can't have been stockpiling we can't have been stockpiling you can't have been stockpiling they can't have been stockpiling

Interrogative form

Simple form	V-ing form
can I stockpile? can you stockpile? can he stockpile? can we stockpile? can you stockpile? can they stockpile?	can I be stockpiling? can you be stockpiling? can he be stockpiling? can we be stockpiling? can you be stockpiling? can they be stockpiling?
Perfect	V-ing perfect
can I have stockpiled? can you have stockpiled? can he have stockpiled? can we have stockpiled? can you have stockpiled? can they have stockpiled?	can I have been stockpiling? can you have been stockpiling? can he have been stockpiling? can we have been stockpiling? can you have been stockpiling? can they have been stockpiling?

Interro-negative form

Simple form	V-ing form
can't I stockpile? can't you stockpile? can't he stockpile? can't we stockpile? can't you stockpile? can't they stockpile?	can't I be stockpiling? can't you be stockpiling? can't he be stockpiling? can't we be stockpiling? can't you be stockpiling? can't they be stockpiling?
Perfect	V-ing perfect
can't I have stockpiled? can't you have stockpiled? can't he have stockpiled? can't we have stockpiled? can't you have stockpiled? can't they have stockpiled?	can't I have been stockpiling? can't you have been stockpiling? can't he have been stockpiling? can't we have been stockpiling? can't you have been stockpiling? can't they have been stockpiling?