Should

We use 'should' for giving advice.

• You should speak to him about it.
• He should see a doctor.
• We should ask a lawyer.

We use 'should' to give an opinion or a recommendation.

• He should resign now.
• We should invest more in Asia.
• They should do something about this terrible train service.

'Should' expresses a personal opinion and is much weaker and more personal than 'must' or 'have to'. It is often introduced by ' I think'.

• I think they should replace him.
• I don't think they should keep the contract.
• Do you think we should tell her.