I can ditch you can ditch he can ditch we can ditch you can ditch they can ditch
V-ing form
I can be ditching you can be ditching he can be ditching we can be ditching you can be ditching they can be ditching
Perfect
I can have ditched you can have ditched he can have ditched we can have ditched you can have ditched they can have ditched
V-ing perfect
I can have been ditching you can have been ditching he can have been ditching we can have been ditching you can have been ditching they can have been ditching
Negation
Simple form
I can't ditch you can't ditch he can't ditch we can't ditch you can't ditch they can't ditch
V-ing form
I can't be ditching you can't be ditching he can't be ditching we can't be ditching you can't be ditching they can't be ditching
Perfect
I can't have ditched you can't have ditched he can't have ditched we can't have ditched you can't have ditched they can't have ditched
V-ing perfect
I can't have been ditching you can't have been ditching he can't have been ditching we can't have been ditching you can't have been ditching they can't have been ditching
Interrogative form
Simple form
can I ditch? can you ditch? can he ditch? can we ditch? can you ditch? can they ditch?
V-ing form
can I be ditching? can you be ditching? can he be ditching? can we be ditching? can you be ditching? can they be ditching?
Perfect
can I have ditched? can you have ditched? can he have ditched? can we have ditched? can you have ditched? can they have ditched?
V-ing perfect
can I have been ditching? can you have been ditching? can he have been ditching? can we have been ditching? can you have been ditching? can they have been ditching?
Interro-negative form
Simple form
can't I ditch? can't you ditch? can't he ditch? can't we ditch? can't you ditch? can't they ditch?
V-ing form
can't I be ditching? can't you be ditching? can't he be ditching? can't we be ditching? can't you be ditching? can't they be ditching?
Perfect
can't I have ditched? can't you have ditched? can't he have ditched? can't we have ditched? can't you have ditched? can't they have ditched?
V-ing perfect
can't I have been ditching? can't you have been ditching? can't he have been ditching? can't we have been ditching? can't you have been ditching? can't they have been ditching?