English verb conjugation
CAN TOUR

Regular verb: tour - toured - toured

Affirmation

Simple form	V-ing form
I can tour you can tour he can tour we can tour you can tour they can tour	I can be touring you can be touring he can be touring we can be touring you can be touring they can be touring
Perfect	V-ing perfect
I can have toured you can have toured he can have toured we can have toured you can have toured they can have toured	I can have been touring you can have been touring he can have been touring we can have been touring you can have been touring they can have been touring

Negation

Simple form	V-ing form
I cannot tour you cannot tour he cannot tour we cannot tour you cannot tour they cannot tour	I cannot be touring you cannot be touring he cannot be touring we cannot be touring you cannot be touring they cannot be touring
Perfect	V-ing perfect
I cannot have toured you cannot have toured he cannot have toured we cannot have toured you cannot have toured they cannot have toured	I cannot have been touring you cannot have been touring he cannot have been touring we cannot have been touring you cannot have been touring they cannot have been touring

Interrogative form

Simple form	V-ing form
can I tour? can you tour? can he tour? can we tour? can you tour? can they tour?	can I be touring? can you be touring? can he be touring? can we be touring? can you be touring? can they be touring?
Perfect	V-ing perfect
can I have toured? can you have toured? can he have toured? can we have toured? can you have toured? can they have toured?	can I have been touring? can you have been touring? can he have been touring? can we have been touring? can you have been touring? can they have been touring?

Interro-negative form

Simple form	V-ing form
can I not tour? can you not tour? can he not tour? can we not tour? can you not tour? can they not tour?	can I not be touring? can you not be touring? can he not be touring? can we not be touring? can you not be touring? can they not be touring?
Perfect	V-ing perfect
can I not have toured? can you not have toured? can he not have toured? can we not have toured? can you not have toured? can they not have toured?	can I not have been touring? can you not have been touring? can he not have been touring? can we not have been touring? can you not have been touring? can they not have been touring?