English verb conjugation
CAN UNCROSS

Regular verb: uncross - uncrossed - uncrossed

Affirmation

Simple form	V-ing form
I can uncross you can uncross he can uncross we can uncross you can uncross they can uncross	I can be uncrossing you can be uncrossing he can be uncrossing we can be uncrossing you can be uncrossing they can be uncrossing
Perfect	V-ing perfect
I can have uncrossed you can have uncrossed he can have uncrossed we can have uncrossed you can have uncrossed they can have uncrossed	I can have been uncrossing you can have been uncrossing he can have been uncrossing we can have been uncrossing you can have been uncrossing they can have been uncrossing

Negation

Simple form	V-ing form
I cannot uncross you cannot uncross he cannot uncross we cannot uncross you cannot uncross they cannot uncross	I cannot be uncrossing you cannot be uncrossing he cannot be uncrossing we cannot be uncrossing you cannot be uncrossing they cannot be uncrossing
Perfect	V-ing perfect
I cannot have uncrossed you cannot have uncrossed he cannot have uncrossed we cannot have uncrossed you cannot have uncrossed they cannot have uncrossed	I cannot have been uncrossing you cannot have been uncrossing he cannot have been uncrossing we cannot have been uncrossing you cannot have been uncrossing they cannot have been uncrossing

Interrogative form

Simple form	V-ing form
can I uncross? can you uncross? can he uncross? can we uncross? can you uncross? can they uncross?	can I be uncrossing? can you be uncrossing? can he be uncrossing? can we be uncrossing? can you be uncrossing? can they be uncrossing?
Perfect	V-ing perfect
can I have uncrossed? can you have uncrossed? can he have uncrossed? can we have uncrossed? can you have uncrossed? can they have uncrossed?	can I have been uncrossing? can you have been uncrossing? can he have been uncrossing? can we have been uncrossing? can you have been uncrossing? can they have been uncrossing?

Interro-negative form

Simple form	V-ing form
can I not uncross? can you not uncross? can he not uncross? can we not uncross? can you not uncross? can they not uncross?	can I not be uncrossing? can you not be uncrossing? can he not be uncrossing? can we not be uncrossing? can you not be uncrossing? can they not be uncrossing?
Perfect	V-ing perfect
can I not have uncrossed? can you not have uncrossed? can he not have uncrossed? can we not have uncrossed? can you not have uncrossed? can they not have uncrossed?	can I not have been uncrossing? can you not have been uncrossing? can he not have been uncrossing? can we not have been uncrossing? can you not have been uncrossing? can they not have been uncrossing?