should/shouldn't

should/shouldn't

1. Form : subject+should+base verb

   • You should use the internet
     • You should go to the libraty
   • You should have known better than to lean on me

2. Form negative: subject should not/shouldn't+base verb

   • You should not wait so long to do your homework.
     • Tuan and Emilio shouldn't go to the Café tomorrow.
   • Bad idea

3. should/should not: requirement

   • should/should not: advice only
     • do not have to: I don't have to go to the library.