themselves

Used as an object when it refers to the same people or things as the subject.

• The children made costumes for themselves.
  Çocuklar kendilerine kostüm yaptı.
• My parents bought themselves a new car last year.
  Annemle babam geçen yıl kendilerine yeni bir araba aldı.

Used to emphasize that particular people do something, and not anyone else.

• The owners themselves came out to welcome us.
  Mal sahipleri bizzat bizi karşılamaya çıktı.
• My grandparents built this house themselves.
  Bu evi dedemle ninem kendileri yaptı.

Used after 'by' to mean alone, or without any help from others.

• The twins walked to school by themselves for the first time.
  İkizler ilk kez okula tek başlarına yürüdü.
• Small children should never swim by themselves.
  Küçük çocuklar asla tek başlarına yüzmemeli.

In the usual state of health or mind of the people mentioned.

• The players weren't themselves in the second half.
  Oyuncular ikinci yarıda pek kendilerinde değildi.
• After a good night's sleep, the kids were themselves again.
  İyi bir gece uykusundan sonra çocuklar yeniden eski hâllerine döndü.