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he best or right thing to do. You had better put in a brighter light in the room. 3. Don’t hit the pipe. You should not/ shouldn’t hit the pipe. You had better not hit the pipe. We use ‘should’ and ‘had better’ when giving advice and telling people what is the best or right thing to do. 4. Don’t paint the whole room blue. You should not/shouldn’t paint the whole room blue. You had better not paint