269. The emphatic form of the imperative consists of the imperative do, followed by the infinitive without to.
- Do tell me what he said.
- Do stand still.
The form with do is often used when the subject is expressed as,—Do you remain.
270. Prohibition (or negative command) is commonly expressed by means of the form with do.
- Do not open a closed door without knocking.
- Do not forget to say “thank you.”
In poetry and the solemn style prohibition is often expressed by the simple imperative with not.
- Tell me not what too well I know.
- Devise not evil against thy neighbor.
- Seek not to learn my name.
271. Commands are sometimes expressed in the indicative by means of shall or will ([§§ 239–240]).
- Thou shalt not steal.
- You will leave the room immediately.
For such expressions as “Forward!” “Off with you!” and the like, see [§ 530].