English verb conjugation
CAN HEAP

Regular verb: heap - heaped - heaped

Affirmation

Simple form	V-ing form
I can heap you can heap he can heap we can heap you can heap they can heap	I can be heaping you can be heaping he can be heaping we can be heaping you can be heaping they can be heaping
Perfect	V-ing perfect
I can have heaped you can have heaped he can have heaped we can have heaped you can have heaped they can have heaped	I can have been heaping you can have been heaping he can have been heaping we can have been heaping you can have been heaping they can have been heaping

Negation

Simple form	V-ing form
I can't heap you can't heap he can't heap we can't heap you can't heap they can't heap	I can't be heaping you can't be heaping he can't be heaping we can't be heaping you can't be heaping they can't be heaping
Perfect	V-ing perfect
I can't have heaped you can't have heaped he can't have heaped we can't have heaped you can't have heaped they can't have heaped	I can't have been heaping you can't have been heaping he can't have been heaping we can't have been heaping you can't have been heaping they can't have been heaping

Interrogative form

Simple form	V-ing form
can I heap? can you heap? can he heap? can we heap? can you heap? can they heap?	can I be heaping? can you be heaping? can he be heaping? can we be heaping? can you be heaping? can they be heaping?
Perfect	V-ing perfect
can I have heaped? can you have heaped? can he have heaped? can we have heaped? can you have heaped? can they have heaped?	can I have been heaping? can you have been heaping? can he have been heaping? can we have been heaping? can you have been heaping? can they have been heaping?

Interro-negative form

Simple form	V-ing form
can't I heap? can't you heap? can't he heap? can't we heap? can't you heap? can't they heap?	can't I be heaping? can't you be heaping? can't he be heaping? can't we be heaping? can't you be heaping? can't they be heaping?
Perfect	V-ing perfect
can't I have heaped? can't you have heaped? can't he have heaped? can't we have heaped? can't you have heaped? can't they have heaped?	can't I have been heaping? can't you have been heaping? can't he have been heaping? can't we have been heaping? can't you have been heaping? can't they have been heaping?