I enjoy ( fish ) .................... because it is relaxin She loves ( swim ) .................. with you tomorrow My uncle ( move ) .....................to Da Lat in 2005 My parents ( buy ) ...................... this house 20 years ago She often ( go ) ......................... Hue next month He ( play ) ........................... volleyball for 10 years She ( not go ) ..................... to school since last Sun day School children ( wear ) ...................... uniform on Monday Mary often ( go ) ......................... to work on foot

I enjoy ( fish ) .........fishing........... because it is relaxin 

        enjoy + Ving
She loves ( swim ) ..........swimming........ with you tomorrow 

             love+Ving
My uncle ( move ) ......moved...............to Da Lat in 2005 

     Thì QKĐ

     DH: in 2005   

      S+Ved/2+...
My parents ( buy ) .........bought............. this house 20 years ago 

      Thì QKĐ

      DH: 20 years ago 
She often ( go ) ............will go............ Hue next month 

           Thì TLĐ

           DH:next month
He ( play ) ...........has played................ volleyball for 10 years 

    Thì HTHT

     DH: for 10 years
She ( not go ) .......didn't go.............. to school since last Sun day  

       Thì QKĐ

       DH: since last Sunday
School children ( wear ) ........wear .............. uniform on Monday 

      Thì HTĐ
Mary often ( go ) ...........goes.............. to work on foot

       Thì HTĐ

        DH: often