I can starve you can starve he can starve we can starve you can starve they can starve
V-ing form
I can be starving you can be starving he can be starving we can be starving you can be starving they can be starving
Perfect
I can have starved you can have starved he can have starved we can have starved you can have starved they can have starved
V-ing perfect
I can have been starving you can have been starving he can have been starving we can have been starving you can have been starving they can have been starving
Negation
Simple form
I can't starve you can't starve he can't starve we can't starve you can't starve they can't starve
V-ing form
I can't be starving you can't be starving he can't be starving we can't be starving you can't be starving they can't be starving
Perfect
I can't have starved you can't have starved he can't have starved we can't have starved you can't have starved they can't have starved
V-ing perfect
I can't have been starving you can't have been starving he can't have been starving we can't have been starving you can't have been starving they can't have been starving
Interrogative form
Simple form
can I starve? can you starve? can he starve? can we starve? can you starve? can they starve?
V-ing form
can I be starving? can you be starving? can he be starving? can we be starving? can you be starving? can they be starving?
Perfect
can I have starved? can you have starved? can he have starved? can we have starved? can you have starved? can they have starved?
V-ing perfect
can I have been starving? can you have been starving? can he have been starving? can we have been starving? can you have been starving? can they have been starving?
Interro-negative form
Simple form
can't I starve? can't you starve? can't he starve? can't we starve? can't you starve? can't they starve?
V-ing form
can't I be starving? can't you be starving? can't he be starving? can't we be starving? can't you be starving? can't they be starving?
Perfect
can't I have starved? can't you have starved? can't he have starved? can't we have starved? can't you have starved? can't they have starved?
V-ing perfect
can't I have been starving? can't you have been starving? can't he have been starving? can't we have been starving? can't you have been starving? can't they have been starving?