English verb conjugation
CAN FOSTER

Regular verb: foster - fostered - fostered

Affirmation

Simple form	V-ing form
I can foster you can foster he can foster we can foster you can foster they can foster	I can be fostering you can be fostering he can be fostering we can be fostering you can be fostering they can be fostering
Perfect	V-ing perfect
I can have fostered you can have fostered he can have fostered we can have fostered you can have fostered they can have fostered	I can have been fostering you can have been fostering he can have been fostering we can have been fostering you can have been fostering they can have been fostering

Negation

Simple form	V-ing form
I can't foster you can't foster he can't foster we can't foster you can't foster they can't foster	I can't be fostering you can't be fostering he can't be fostering we can't be fostering you can't be fostering they can't be fostering
Perfect	V-ing perfect
I can't have fostered you can't have fostered he can't have fostered we can't have fostered you can't have fostered they can't have fostered	I can't have been fostering you can't have been fostering he can't have been fostering we can't have been fostering you can't have been fostering they can't have been fostering

Interrogative form

Simple form	V-ing form
can I foster? can you foster? can he foster? can we foster? can you foster? can they foster?	can I be fostering? can you be fostering? can he be fostering? can we be fostering? can you be fostering? can they be fostering?
Perfect	V-ing perfect
can I have fostered? can you have fostered? can he have fostered? can we have fostered? can you have fostered? can they have fostered?	can I have been fostering? can you have been fostering? can he have been fostering? can we have been fostering? can you have been fostering? can they have been fostering?

Interro-negative form

Simple form	V-ing form
can't I foster? can't you foster? can't he foster? can't we foster? can't you foster? can't they foster?	can't I be fostering? can't you be fostering? can't he be fostering? can't we be fostering? can't you be fostering? can't they be fostering?
Perfect	V-ing perfect
can't I have fostered? can't you have fostered? can't he have fostered? can't we have fostered? can't you have fostered? can't they have fostered?	can't I have been fostering? can't you have been fostering? can't he have been fostering? can't we have been fostering? can't you have been fostering? can't they have been fostering?