I can count you can count she can count we can count you can count they can count
V-ing form
I can be counting you can be counting she can be counting we can be counting you can be counting they can be counting
Perfect
I can have counted you can have counted she can have counted we can have counted you can have counted they can have counted
V-ing perfect
I can have been counting you can have been counting she can have been counting we can have been counting you can have been counting they can have been counting
Negation
Simple form
I cannot count you cannot count she cannot count we cannot count you cannot count they cannot count
V-ing form
I cannot be counting you cannot be counting she cannot be counting we cannot be counting you cannot be counting they cannot be counting
Perfect
I cannot have counted you cannot have counted she cannot have counted we cannot have counted you cannot have counted they cannot have counted
V-ing perfect
I cannot have been counting you cannot have been counting she cannot have been counting we cannot have been counting you cannot have been counting they cannot have been counting
Interrogative form
Simple form
can I count? can you count? can she count? can we count? can you count? can they count?
V-ing form
can I be counting? can you be counting? can she be counting? can we be counting? can you be counting? can they be counting?
Perfect
can I have counted? can you have counted? can she have counted? can we have counted? can you have counted? can they have counted?
V-ing perfect
can I have been counting? can you have been counting? can she have been counting? can we have been counting? can you have been counting? can they have been counting?
Interro-negative form
Simple form
can I not count? can you not count? can she not count? can we not count? can you not count? can they not count?
V-ing form
can I not be counting? can you not be counting? can she not be counting? can we not be counting? can you not be counting? can they not be counting?
Perfect
can I not have counted? can you not have counted? can she not have counted? can we not have counted? can you not have counted? can they not have counted?
V-ing perfect
can I not have been counting? can you not have been counting? can she not have been counting? can we not have been counting? can you not have been counting? can they not have been counting?