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  ���������Тͧ�����¹
�Ӻ͡�����ʴ������ Present perfect simple tense

  Since + �ش�ͧ���� ����ҵ����
�� since last year �����շ������ since yesterday ����������ҹ���
  For + �������� ����� ������
�� for two weeks ������ 2 �ѻ���� for ten years ������ 10 ��
  So for / up to now / up to the present time = �Ǻ���Ѵ���

��ѡ����� Present perfect simple tense
1. �������˵ء�ó����Դ����ʹյ ��д��Թ�Ҩ��֧�Ѩ�غѹ �ѧࡵ�ҡ�Ӻ͡���� �� since, for, up to now etc. ��

����¤�����ѧ��� »  Jill has lived in Canada since 1934.
����¤������ » �������������᤹Ҵ��ҵ����� 1934 (��й����ѧ������ Canada)
����¤�����ѧ��� » I have known her for six months.
����¤������ » �����ѡ���͹�������� 6 ��͹���� (��й����ѧ���ѡ����)
����¤�����ѧ��� »  Their father has been ill for a long time.
����¤������ » ��ͧ͢�ǡ�һ����ҹҹ���� (��й����ѧ��������)
����¤�����ѧ��� » So far, we have enjoyed our English class very much.
����¤������ » ���ء�ѹ��� ���ʹءʹҹ�Ѻ������¹�����ѧ����ҡ


Note : since �Ҩ���������� ���ͻ���¤���� (S + V) ���� ��� since ������� S + V ����ҷ��������ѧ since ��ͧ����ٻ�ͧ V2 ���� ��
����¤�����ѧ��� » Malee has had a headache since she got up.
����¤������ » ���ջǴ��ǵ�����蹹͹���� (��й����ѧ�Ǵ����)
����¤�����ѧ��� » I have not seen snow since I came back from the U.S.A.
����¤������ » ���ѧ�������������ա��µ�����Ѻ�Ҩҡ����ԡ� (��й����ѧ��������)

����� since �Ѻ for

Since ����� ����� ��͡�ش������鹢ͧ���� �� �����������ҹ��� ������ 1952 �������ҹ�� �繵� �»��� since �е�����¤Ӻ͡���ҷ�� ������ٻ�ͧ�͡���� ����ѧ����ö������»���¤�����

Since + �ش�ͧ����
  + ����¤����� past simple (V2)

�� Since early this morning ��������
  Since last month �������͹�������
  Since I was young. �����ѹ�ѧ����

For ����� ������ ������¨ӹǹ���� ���Ԩе�����¤Ӻ͡���ҷ���ʴ��ӹǹ for ��� ��������������ҷ���ʴ��ӹǹ for ��鹨�������������ҷ���繻���¤

For + �ӹǹ����

�� For ten years ������ 10 ��, for a long time �����ҹҹ
  For two weeks ������ 2 �ѻ����
  For an hour ������ 1 �������


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• Question Tag
   ° Do, Does, Did
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• Tense
   ° Present Simple Tense
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   ° Past Simple Tense
   ° Past Continuous Tense
   ° Past Perfect Tense
   ° Future Simple Tense
   ° Future Continuous Tense
   ° Future Perfect Simple Tense
 
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