I can dart you can dart she can dart we can dart you can dart they can dart
V-ing form
I can be darting you can be darting she can be darting we can be darting you can be darting they can be darting
Perfect
I can have darted you can have darted she can have darted we can have darted you can have darted they can have darted
V-ing perfect
I can have been darting you can have been darting she can have been darting we can have been darting you can have been darting they can have been darting
Negation
Simple form
I cannot dart you cannot dart she cannot dart we cannot dart you cannot dart they cannot dart
V-ing form
I cannot be darting you cannot be darting she cannot be darting we cannot be darting you cannot be darting they cannot be darting
Perfect
I cannot have darted you cannot have darted she cannot have darted we cannot have darted you cannot have darted they cannot have darted
V-ing perfect
I cannot have been darting you cannot have been darting she cannot have been darting we cannot have been darting you cannot have been darting they cannot have been darting
Interrogative form
Simple form
can I dart? can you dart? can she dart? can we dart? can you dart? can they dart?
V-ing form
can I be darting? can you be darting? can she be darting? can we be darting? can you be darting? can they be darting?
Perfect
can I have darted? can you have darted? can she have darted? can we have darted? can you have darted? can they have darted?
V-ing perfect
can I have been darting? can you have been darting? can she have been darting? can we have been darting? can you have been darting? can they have been darting?
Interro-negative form
Simple form
can I not dart? can you not dart? can she not dart? can we not dart? can you not dart? can they not dart?
V-ing form
can I not be darting? can you not be darting? can she not be darting? can we not be darting? can you not be darting? can they not be darting?
Perfect
can I not have darted? can you not have darted? can she not have darted? can we not have darted? can you not have darted? can they not have darted?
V-ing perfect
can I not have been darting? can you not have been darting? can she not have been darting? can we not have been darting? can you not have been darting? can they not have been darting?