should

Used to say that doing something is a good idea or the right thing to do.

• You should get some sleep.
• Should we ask someone for help?
• I should have studied harder for the test.

How to use it: should + base verb (You should drink some water.); should have + past participle (I should have brought a coat.)

Similar words: ought to

Common phrases: should rest, should try something, should see someone, should visit someone

Used to tell people what they are expected to do, especially in rules or instructions.

• Staff should wear their name badges.
• Applications should arrive before the deadline.
• You should not leave this door open.

How to use it: should + base verb (Visitors should sign in at reception.); should be + past participle (Forms should be returned by Friday.)

Similar words: ought to, be expected to

Common phrases: should submit something, should wear something, should report something