1)They are working in the garden (We said).
2)He can swim (I said).
3)He has alredy seen this play (He told).
4)Sophie is a very clever girl (He knew).
5)They have been waiting for him for ten minutes (My mother said).

1) We said that they were working in the garden.2) I said that he could swim.3) He told thar he had already seen this play.4) He knew that Sophie was a very clever girl.5) My mother said that they had been waiting for him for ten minutes.