English verb conjugation
CAN PLUMPEN

Regular verb: plumpen - plumpened - plumpened

Affirmation

Simple form	V-ing form
I can plumpen you can plumpen he can plumpen we can plumpen you can plumpen they can plumpen	I can be plumpening you can be plumpening he can be plumpening we can be plumpening you can be plumpening they can be plumpening
Perfect	V-ing perfect
I can have plumpened you can have plumpened he can have plumpened we can have plumpened you can have plumpened they can have plumpened	I can have been plumpening you can have been plumpening he can have been plumpening we can have been plumpening you can have been plumpening they can have been plumpening

Negation

Simple form	V-ing form
I can't plumpen you can't plumpen he can't plumpen we can't plumpen you can't plumpen they can't plumpen	I can't be plumpening you can't be plumpening he can't be plumpening we can't be plumpening you can't be plumpening they can't be plumpening
Perfect	V-ing perfect
I can't have plumpened you can't have plumpened he can't have plumpened we can't have plumpened you can't have plumpened they can't have plumpened	I can't have been plumpening you can't have been plumpening he can't have been plumpening we can't have been plumpening you can't have been plumpening they can't have been plumpening

Interrogative form

Simple form	V-ing form
can I plumpen? can you plumpen? can he plumpen? can we plumpen? can you plumpen? can they plumpen?	can I be plumpening? can you be plumpening? can he be plumpening? can we be plumpening? can you be plumpening? can they be plumpening?
Perfect	V-ing perfect
can I have plumpened? can you have plumpened? can he have plumpened? can we have plumpened? can you have plumpened? can they have plumpened?	can I have been plumpening? can you have been plumpening? can he have been plumpening? can we have been plumpening? can you have been plumpening? can they have been plumpening?

Interro-negative form

Simple form	V-ing form
can't I plumpen? can't you plumpen? can't he plumpen? can't we plumpen? can't you plumpen? can't they plumpen?	can't I be plumpening? can't you be plumpening? can't he be plumpening? can't we be plumpening? can't you be plumpening? can't they be plumpening?
Perfect	V-ing perfect
can't I have plumpened? can't you have plumpened? can't he have plumpened? can't we have plumpened? can't you have plumpened? can't they have plumpened?	can't I have been plumpening? can't you have been plumpening? can't he have been plumpening? can't we have been plumpening? can't you have been plumpening? can't they have been plumpening?