I can stipulate you can stipulate he can stipulate we can stipulate you can stipulate they can stipulate
V-ing form
I can be stipulating you can be stipulating he can be stipulating we can be stipulating you can be stipulating they can be stipulating
Perfect
I can have stipulated you can have stipulated he can have stipulated we can have stipulated you can have stipulated they can have stipulated
V-ing perfect
I can have been stipulating you can have been stipulating he can have been stipulating we can have been stipulating you can have been stipulating they can have been stipulating
Negation
Simple form
I can't stipulate you can't stipulate he can't stipulate we can't stipulate you can't stipulate they can't stipulate
V-ing form
I can't be stipulating you can't be stipulating he can't be stipulating we can't be stipulating you can't be stipulating they can't be stipulating
Perfect
I can't have stipulated you can't have stipulated he can't have stipulated we can't have stipulated you can't have stipulated they can't have stipulated
V-ing perfect
I can't have been stipulating you can't have been stipulating he can't have been stipulating we can't have been stipulating you can't have been stipulating they can't have been stipulating
Interrogative form
Simple form
can I stipulate? can you stipulate? can he stipulate? can we stipulate? can you stipulate? can they stipulate?
V-ing form
can I be stipulating? can you be stipulating? can he be stipulating? can we be stipulating? can you be stipulating? can they be stipulating?
Perfect
can I have stipulated? can you have stipulated? can he have stipulated? can we have stipulated? can you have stipulated? can they have stipulated?
V-ing perfect
can I have been stipulating? can you have been stipulating? can he have been stipulating? can we have been stipulating? can you have been stipulating? can they have been stipulating?
Interro-negative form
Simple form
can't I stipulate? can't you stipulate? can't he stipulate? can't we stipulate? can't you stipulate? can't they stipulate?
V-ing form
can't I be stipulating? can't you be stipulating? can't he be stipulating? can't we be stipulating? can't you be stipulating? can't they be stipulating?
Perfect
can't I have stipulated? can't you have stipulated? can't he have stipulated? can't we have stipulated? can't you have stipulated? can't they have stipulated?
V-ing perfect
can't I have been stipulating? can't you have been stipulating? can't he have been stipulating? can't we have been stipulating? can't you have been stipulating? can't they have been stipulating?