English verb conjugation
CAN DISPLAY

Regular verb: display - displayed - displayed

Affirmation

Simple form	V-ing form
I can display you can display he can display we can display you can display they can display	I can be displaying you can be displaying he can be displaying we can be displaying you can be displaying they can be displaying
Perfect	V-ing perfect
I can have displayed you can have displayed he can have displayed we can have displayed you can have displayed they can have displayed	I can have been displaying you can have been displaying he can have been displaying we can have been displaying you can have been displaying they can have been displaying

Negation

Simple form	V-ing form
I can't display you can't display he can't display we can't display you can't display they can't display	I can't be displaying you can't be displaying he can't be displaying we can't be displaying you can't be displaying they can't be displaying
Perfect	V-ing perfect
I can't have displayed you can't have displayed he can't have displayed we can't have displayed you can't have displayed they can't have displayed	I can't have been displaying you can't have been displaying he can't have been displaying we can't have been displaying you can't have been displaying they can't have been displaying

Interrogative form

Simple form	V-ing form
can I display? can you display? can he display? can we display? can you display? can they display?	can I be displaying? can you be displaying? can he be displaying? can we be displaying? can you be displaying? can they be displaying?
Perfect	V-ing perfect
can I have displayed? can you have displayed? can he have displayed? can we have displayed? can you have displayed? can they have displayed?	can I have been displaying? can you have been displaying? can he have been displaying? can we have been displaying? can you have been displaying? can they have been displaying?

Interro-negative form

Simple form	V-ing form
can't I display? can't you display? can't he display? can't we display? can't you display? can't they display?	can't I be displaying? can't you be displaying? can't he be displaying? can't we be displaying? can't you be displaying? can't they be displaying?
Perfect	V-ing perfect
can't I have displayed? can't you have displayed? can't he have displayed? can't we have displayed? can't you have displayed? can't they have displayed?	can't I have been displaying? can't you have been displaying? can't he have been displaying? can't we have been displaying? can't you have been displaying? can't they have been displaying?