Page 153 - Grammar Basic_Neat
P. 153

10/2/2023






                USAGE



                            CAN                                        COULD

             # 2 Express a possibility                     # 2 Express a possibility in the past

             (in general)                                  (to express something is possible but did not
                                                           happen) ⇒ Could + have + V Pii

                                                           He could have passed last exam with a
             Smoking can cause cancer.
                                                           high score.





















                USAGE


                            CAN                                        COULD

             # 3 Ask for permission or to                  # 3 Ask for permission or to request
             request something (informal)                  something (more polite)

             Can I ask a question?                         Could I speak to Ms. Loan, please?
             Can you make less noise, please?              Could you turn that music down a little?






















                                                                                                          4
   148   149   150   151   152   153   154   155   156   157   158