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 cannot starve you cannot starve he cannot starve we cannot starve you cannot starve they cannot starve
V-ing form
I cannot be starving you cannot be starving he cannot be starving we cannot be starving you cannot be starving they cannot be starving
Perfect
I cannot have starved you cannot have starved he cannot have starved we cannot have starved you cannot have starved they cannot have starved
V-ing perfect
I cannot have been starving you cannot have been starving he cannot have been starving we cannot have been starving you cannot have been starving they cannot 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 I not starve? can you not starve? can he not starve? can we not starve? can you not starve? can they not starve?
V-ing form
can I not be starving? can you not be starving? can he not be starving? can we not be starving? can you not be starving? can they not be starving?
Perfect
can I not have starved? can you not have starved? can he not have starved? can we not have starved? can you not have starved? can they not have starved?
V-ing perfect
can I not have been starving? can you not have been starving? can he not have been starving? can we not have been starving? can you not have been starving? can they not have been starving?