English verb conjugation
CAN UNMASK

Regular verb: unmask - unmasked - unmasked

Affirmation

Simple form	V-ing form
I can unmask you can unmask he can unmask we can unmask you can unmask they can unmask	I can be unmasking you can be unmasking he can be unmasking we can be unmasking you can be unmasking they can be unmasking
Perfect	V-ing perfect
I can have unmasked you can have unmasked he can have unmasked we can have unmasked you can have unmasked they can have unmasked	I can have been unmasking you can have been unmasking he can have been unmasking we can have been unmasking you can have been unmasking they can have been unmasking

Negation

Simple form	V-ing form
I can't unmask you can't unmask he can't unmask we can't unmask you can't unmask they can't unmask	I can't be unmasking you can't be unmasking he can't be unmasking we can't be unmasking you can't be unmasking they can't be unmasking
Perfect	V-ing perfect
I can't have unmasked you can't have unmasked he can't have unmasked we can't have unmasked you can't have unmasked they can't have unmasked	I can't have been unmasking you can't have been unmasking he can't have been unmasking we can't have been unmasking you can't have been unmasking they can't have been unmasking

Interrogative form

Simple form	V-ing form
can I unmask? can you unmask? can he unmask? can we unmask? can you unmask? can they unmask?	can I be unmasking? can you be unmasking? can he be unmasking? can we be unmasking? can you be unmasking? can they be unmasking?
Perfect	V-ing perfect
can I have unmasked? can you have unmasked? can he have unmasked? can we have unmasked? can you have unmasked? can they have unmasked?	can I have been unmasking? can you have been unmasking? can he have been unmasking? can we have been unmasking? can you have been unmasking? can they have been unmasking?

Interro-negative form

Simple form	V-ing form
can't I unmask? can't you unmask? can't he unmask? can't we unmask? can't you unmask? can't they unmask?	can't I be unmasking? can't you be unmasking? can't he be unmasking? can't we be unmasking? can't you be unmasking? can't they be unmasking?
Perfect	V-ing perfect
can't I have unmasked? can't you have unmasked? can't he have unmasked? can't we have unmasked? can't you have unmasked? can't they have unmasked?	can't I have been unmasking? can't you have been unmasking? can't he have been unmasking? can't we have been unmasking? can't you have been unmasking? can't they have been unmasking?