One: two: why, then, 'tis time to do't.

LADY MACBETH

Wash your hands, put on your nightgown; look not so pale.--I tell you yet again, Banquo's buried; he cannot come out on's grave.

DOCTOR Even so?

LADY MACBETH

To bed, to bed! there's knocking at the gate: come, come, come, come, give me your hand. What's done cannot be undone.--To bed, to bed, to bed! 

[Exit]

DOCTOR Will she go now to bed?

GENTLEWOMAN   Directly.