English verb conjugation
CAN ULTRAFILTER

Regular verb: ultrafilter - ultrafiltered - ultrafiltered

Affirmation

Simple form	V-ing form
I can ultrafilter you can ultrafilter he can ultrafilter we can ultrafilter you can ultrafilter they can ultrafilter	I can be ultrafiltering you can be ultrafiltering he can be ultrafiltering we can be ultrafiltering you can be ultrafiltering they can be ultrafiltering
Perfect	V-ing perfect
I can have ultrafiltered you can have ultrafiltered he can have ultrafiltered we can have ultrafiltered you can have ultrafiltered they can have ultrafiltered	I can have been ultrafiltering you can have been ultrafiltering he can have been ultrafiltering we can have been ultrafiltering you can have been ultrafiltering they can have been ultrafiltering

Negation

Simple form	V-ing form
I cannot ultrafilter you cannot ultrafilter he cannot ultrafilter we cannot ultrafilter you cannot ultrafilter they cannot ultrafilter	I cannot be ultrafiltering you cannot be ultrafiltering he cannot be ultrafiltering we cannot be ultrafiltering you cannot be ultrafiltering they cannot be ultrafiltering
Perfect	V-ing perfect
I cannot have ultrafiltered you cannot have ultrafiltered he cannot have ultrafiltered we cannot have ultrafiltered you cannot have ultrafiltered they cannot have ultrafiltered	I cannot have been ultrafiltering you cannot have been ultrafiltering he cannot have been ultrafiltering we cannot have been ultrafiltering you cannot have been ultrafiltering they cannot have been ultrafiltering

Interrogative form

Simple form	V-ing form
can I ultrafilter? can you ultrafilter? can he ultrafilter? can we ultrafilter? can you ultrafilter? can they ultrafilter?	can I be ultrafiltering? can you be ultrafiltering? can he be ultrafiltering? can we be ultrafiltering? can you be ultrafiltering? can they be ultrafiltering?
Perfect	V-ing perfect
can I have ultrafiltered? can you have ultrafiltered? can he have ultrafiltered? can we have ultrafiltered? can you have ultrafiltered? can they have ultrafiltered?	can I have been ultrafiltering? can you have been ultrafiltering? can he have been ultrafiltering? can we have been ultrafiltering? can you have been ultrafiltering? can they have been ultrafiltering?

Interro-negative form

Simple form	V-ing form
can I not ultrafilter? can you not ultrafilter? can he not ultrafilter? can we not ultrafilter? can you not ultrafilter? can they not ultrafilter?	can I not be ultrafiltering? can you not be ultrafiltering? can he not be ultrafiltering? can we not be ultrafiltering? can you not be ultrafiltering? can they not be ultrafiltering?
Perfect	V-ing perfect
can I not have ultrafiltered? can you not have ultrafiltered? can he not have ultrafiltered? can we not have ultrafiltered? can you not have ultrafiltered? can they not have ultrafiltered?	can I not have been ultrafiltering? can you not have been ultrafiltering? can he not have been ultrafiltering? can we not have been ultrafiltering? can you not have been ultrafiltering? can they not have been ultrafiltering?