English verb conjugation
CAN CROSS

Regular verb: cross - crossed - crossed

Affirmation

Simple form	V-ing form
I can cross you can cross he can cross we can cross you can cross they can cross	I can be crossing you can be crossing he can be crossing we can be crossing you can be crossing they can be crossing
Perfect	V-ing perfect
I can have crossed you can have crossed he can have crossed we can have crossed you can have crossed they can have crossed	I can have been crossing you can have been crossing he can have been crossing we can have been crossing you can have been crossing they can have been crossing

Negation

Simple form	V-ing form
I can't cross you can't cross he can't cross we can't cross you can't cross they can't cross	I can't be crossing you can't be crossing he can't be crossing we can't be crossing you can't be crossing they can't be crossing
Perfect	V-ing perfect
I can't have crossed you can't have crossed he can't have crossed we can't have crossed you can't have crossed they can't have crossed	I can't have been crossing you can't have been crossing he can't have been crossing we can't have been crossing you can't have been crossing they can't have been crossing

Interrogative form

Simple form	V-ing form
can I cross? can you cross? can he cross? can we cross? can you cross? can they cross?	can I be crossing? can you be crossing? can he be crossing? can we be crossing? can you be crossing? can they be crossing?
Perfect	V-ing perfect
can I have crossed? can you have crossed? can he have crossed? can we have crossed? can you have crossed? can they have crossed?	can I have been crossing? can you have been crossing? can he have been crossing? can we have been crossing? can you have been crossing? can they have been crossing?

Interro-negative form

Simple form	V-ing form
can't I cross? can't you cross? can't he cross? can't we cross? can't you cross? can't they cross?	can't I be crossing? can't you be crossing? can't he be crossing? can't we be crossing? can't you be crossing? can't they be crossing?
Perfect	V-ing perfect
can't I have crossed? can't you have crossed? can't he have crossed? can't we have crossed? can't you have crossed? can't they have crossed?	can't I have been crossing? can't you have been crossing? can't he have been crossing? can't we have been crossing? can't you have been crossing? can't they have been crossing?