I can involve you can involve he can involve we can involve you can involve they can involve
V-ing form
I can be involving you can be involving he can be involving we can be involving you can be involving they can be involving
Perfect
I can have involved you can have involved he can have involved we can have involved you can have involved they can have involved
V-ing perfect
I can have been involving you can have been involving he can have been involving we can have been involving you can have been involving they can have been involving
Negation
Simple form
I cannot involve you cannot involve he cannot involve we cannot involve you cannot involve they cannot involve
V-ing form
I cannot be involving you cannot be involving he cannot be involving we cannot be involving you cannot be involving they cannot be involving
Perfect
I cannot have involved you cannot have involved he cannot have involved we cannot have involved you cannot have involved they cannot have involved
V-ing perfect
I cannot have been involving you cannot have been involving he cannot have been involving we cannot have been involving you cannot have been involving they cannot have been involving
Interrogative form
Simple form
can I involve? can you involve? can he involve? can we involve? can you involve? can they involve?
V-ing form
can I be involving? can you be involving? can he be involving? can we be involving? can you be involving? can they be involving?
Perfect
can I have involved? can you have involved? can he have involved? can we have involved? can you have involved? can they have involved?
V-ing perfect
can I have been involving? can you have been involving? can he have been involving? can we have been involving? can you have been involving? can they have been involving?
Interro-negative form
Simple form
can I not involve? can you not involve? can he not involve? can we not involve? can you not involve? can they not involve?
V-ing form
can I not be involving? can you not be involving? can he not be involving? can we not be involving? can you not be involving? can they not be involving?
Perfect
can I not have involved? can you not have involved? can he not have involved? can we not have involved? can you not have involved? can they not have involved?
V-ing perfect
can I not have been involving? can you not have been involving? can he not have been involving? can we not have been involving? can you not have been involving? can they not have been involving?