English verb conjugation
CAN PREFOCUS

Regular verb: prefocus - prefocused - prefocused

Affirmation

Simple form	V-ing form
I can prefocus you can prefocus he can prefocus we can prefocus you can prefocus they can prefocus	I can be prefocusing you can be prefocusing he can be prefocusing we can be prefocusing you can be prefocusing they can be prefocusing
Perfect	V-ing perfect
I can have prefocused you can have prefocused he can have prefocused we can have prefocused you can have prefocused they can have prefocused	I can have been prefocusing you can have been prefocusing he can have been prefocusing we can have been prefocusing you can have been prefocusing they can have been prefocusing

Negation

Simple form	V-ing form
I can't prefocus you can't prefocus he can't prefocus we can't prefocus you can't prefocus they can't prefocus	I can't be prefocusing you can't be prefocusing he can't be prefocusing we can't be prefocusing you can't be prefocusing they can't be prefocusing
Perfect	V-ing perfect
I can't have prefocused you can't have prefocused he can't have prefocused we can't have prefocused you can't have prefocused they can't have prefocused	I can't have been prefocusing you can't have been prefocusing he can't have been prefocusing we can't have been prefocusing you can't have been prefocusing they can't have been prefocusing

Interrogative form

Simple form	V-ing form
can I prefocus? can you prefocus? can he prefocus? can we prefocus? can you prefocus? can they prefocus?	can I be prefocusing? can you be prefocusing? can he be prefocusing? can we be prefocusing? can you be prefocusing? can they be prefocusing?
Perfect	V-ing perfect
can I have prefocused? can you have prefocused? can he have prefocused? can we have prefocused? can you have prefocused? can they have prefocused?	can I have been prefocusing? can you have been prefocusing? can he have been prefocusing? can we have been prefocusing? can you have been prefocusing? can they have been prefocusing?

Interro-negative form

Simple form	V-ing form
can't I prefocus? can't you prefocus? can't he prefocus? can't we prefocus? can't you prefocus? can't they prefocus?	can't I be prefocusing? can't you be prefocusing? can't he be prefocusing? can't we be prefocusing? can't you be prefocusing? can't they be prefocusing?
Perfect	V-ing perfect
can't I have prefocused? can't you have prefocused? can't he have prefocused? can't we have prefocused? can't you have prefocused? can't they have prefocused?	can't I have been prefocusing? can't you have been prefocusing? can't he have been prefocusing? can't we have been prefocusing? can't you have been prefocusing? can't they have been prefocusing?