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 can't involve you can't involve he can't involve we can't involve you can't involve they can't involve
V-ing form
I can't be involving you can't be involving he can't be involving we can't be involving you can't be involving they can't be involving
Perfect
I can't have involved you can't have involved he can't have involved we can't have involved you can't have involved they can't have involved
V-ing perfect
I can't have been involving you can't have been involving he can't have been involving we can't have been involving you can't have been involving they can't 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't I involve? can't you involve? can't he involve? can't we involve? can't you involve? can't they involve?
V-ing form
can't I be involving? can't you be involving? can't he be involving? can't we be involving? can't you be involving? can't they be involving?
Perfect
can't I have involved? can't you have involved? can't he have involved? can't we have involved? can't you have involved? can't they have involved?
V-ing perfect
can't I have been involving? can't you have been involving? can't he have been involving? can't we have been involving? can't you have been involving? can't they have been involving?