I can pursue you can pursue he can pursue we can pursue you can pursue they can pursue
V-ing form
I can be pursuing you can be pursuing he can be pursuing we can be pursuing you can be pursuing they can be pursuing
Perfect
I can have pursued you can have pursued he can have pursued we can have pursued you can have pursued they can have pursued
V-ing perfect
I can have been pursuing you can have been pursuing he can have been pursuing we can have been pursuing you can have been pursuing they can have been pursuing
Negation
Simple form
I can't pursue you can't pursue he can't pursue we can't pursue you can't pursue they can't pursue
V-ing form
I can't be pursuing you can't be pursuing he can't be pursuing we can't be pursuing you can't be pursuing they can't be pursuing
Perfect
I can't have pursued you can't have pursued he can't have pursued we can't have pursued you can't have pursued they can't have pursued
V-ing perfect
I can't have been pursuing you can't have been pursuing he can't have been pursuing we can't have been pursuing you can't have been pursuing they can't have been pursuing
Interrogative form
Simple form
can I pursue? can you pursue? can he pursue? can we pursue? can you pursue? can they pursue?
V-ing form
can I be pursuing? can you be pursuing? can he be pursuing? can we be pursuing? can you be pursuing? can they be pursuing?
Perfect
can I have pursued? can you have pursued? can he have pursued? can we have pursued? can you have pursued? can they have pursued?
V-ing perfect
can I have been pursuing? can you have been pursuing? can he have been pursuing? can we have been pursuing? can you have been pursuing? can they have been pursuing?
Interro-negative form
Simple form
can't I pursue? can't you pursue? can't he pursue? can't we pursue? can't you pursue? can't they pursue?
V-ing form
can't I be pursuing? can't you be pursuing? can't he be pursuing? can't we be pursuing? can't you be pursuing? can't they be pursuing?
Perfect
can't I have pursued? can't you have pursued? can't he have pursued? can't we have pursued? can't you have pursued? can't they have pursued?
V-ing perfect
can't I have been pursuing? can't you have been pursuing? can't he have been pursuing? can't we have been pursuing? can't you have been pursuing? can't they have been pursuing?