I can flute you can flute she can flute we can flute you can flute they can flute
V-ing form
I can be fluting you can be fluting she can be fluting we can be fluting you can be fluting they can be fluting
Perfect
I can have fluted you can have fluted she can have fluted we can have fluted you can have fluted they can have fluted
V-ing perfect
I can have been fluting you can have been fluting she can have been fluting we can have been fluting you can have been fluting they can have been fluting
Negation
Simple form
I cannot flute you cannot flute she cannot flute we cannot flute you cannot flute they cannot flute
V-ing form
I cannot be fluting you cannot be fluting she cannot be fluting we cannot be fluting you cannot be fluting they cannot be fluting
Perfect
I cannot have fluted you cannot have fluted she cannot have fluted we cannot have fluted you cannot have fluted they cannot have fluted
V-ing perfect
I cannot have been fluting you cannot have been fluting she cannot have been fluting we cannot have been fluting you cannot have been fluting they cannot have been fluting
Interrogative form
Simple form
can I flute? can you flute? can she flute? can we flute? can you flute? can they flute?
V-ing form
can I be fluting? can you be fluting? can she be fluting? can we be fluting? can you be fluting? can they be fluting?
Perfect
can I have fluted? can you have fluted? can she have fluted? can we have fluted? can you have fluted? can they have fluted?
V-ing perfect
can I have been fluting? can you have been fluting? can she have been fluting? can we have been fluting? can you have been fluting? can they have been fluting?
Interro-negative form
Simple form
can I not flute? can you not flute? can she not flute? can we not flute? can you not flute? can they not flute?
V-ing form
can I not be fluting? can you not be fluting? can she not be fluting? can we not be fluting? can you not be fluting? can they not be fluting?
Perfect
can I not have fluted? can you not have fluted? can she not have fluted? can we not have fluted? can you not have fluted? can they not have fluted?
V-ing perfect
can I not have been fluting? can you not have been fluting? can she not have been fluting? can we not have been fluting? can you not have been fluting? can they not have been fluting?