should

should (động từ) nghĩa là nên.

1. Used to issue an instruction (traditionally seen as carrying less force of authority than alternatives such as 'shall' or 'must').Dùng để đưa ra chỉ dẫn, thường nhẹ hơn lời yêu cầu dùng “shall” hoặc “must”.
2. Used to give advice or opinion that an action is, or would have been, beneficial or desirable.Dùng để khuyên hoặc cho rằng một hành động có lợi hay đáng làm, hoặc lẽ ra nên làm.
3. With verbs such as 'see' or 'hear', usually in the second person, used to point out something remarkable in either a good or bad way.
4. In questions, asks what is correct, proper, desirable, etc.
5. Indicates that something is expected to have happened or to be the case now.

• You should never drink and drive.
• The law is clear that you should always wear a seat belt.
• The manual says that this switch should be in the 'off' position.