English verb conjugation
CAN REFILTER

Regular verb: refilter - refiltered - refiltered

Affirmation

Simple form	V-ing form
I can refilter you can refilter he can refilter we can refilter you can refilter they can refilter	I can be refiltering you can be refiltering he can be refiltering we can be refiltering you can be refiltering they can be refiltering
Perfect	V-ing perfect
I can have refiltered you can have refiltered he can have refiltered we can have refiltered you can have refiltered they can have refiltered	I can have been refiltering you can have been refiltering he can have been refiltering we can have been refiltering you can have been refiltering they can have been refiltering

Negation

Simple form	V-ing form
I can't refilter you can't refilter he can't refilter we can't refilter you can't refilter they can't refilter	I can't be refiltering you can't be refiltering he can't be refiltering we can't be refiltering you can't be refiltering they can't be refiltering
Perfect	V-ing perfect
I can't have refiltered you can't have refiltered he can't have refiltered we can't have refiltered you can't have refiltered they can't have refiltered	I can't have been refiltering you can't have been refiltering he can't have been refiltering we can't have been refiltering you can't have been refiltering they can't have been refiltering

Interrogative form

Simple form	V-ing form
can I refilter? can you refilter? can he refilter? can we refilter? can you refilter? can they refilter?	can I be refiltering? can you be refiltering? can he be refiltering? can we be refiltering? can you be refiltering? can they be refiltering?
Perfect	V-ing perfect
can I have refiltered? can you have refiltered? can he have refiltered? can we have refiltered? can you have refiltered? can they have refiltered?	can I have been refiltering? can you have been refiltering? can he have been refiltering? can we have been refiltering? can you have been refiltering? can they have been refiltering?

Interro-negative form

Simple form	V-ing form
can't I refilter? can't you refilter? can't he refilter? can't we refilter? can't you refilter? can't they refilter?	can't I be refiltering? can't you be refiltering? can't he be refiltering? can't we be refiltering? can't you be refiltering? can't they be refiltering?
Perfect	V-ing perfect
can't I have refiltered? can't you have refiltered? can't he have refiltered? can't we have refiltered? can't you have refiltered? can't they have refiltered?	can't I have been refiltering? can't you have been refiltering? can't he have been refiltering? can't we have been refiltering? can't you have been refiltering? can't they have been refiltering?