Hello Teachers, <br/><br/>1.They wrote a letter on their own. <br/><br/>I have to replace "on their own" with a pronoun. <br/><br/>2.They wrote a letter theirselves. <br/><br/><br/>"on her own"=herself <br/><br/>on his own=himself <br/><br/>Is there any other conbination of words equal to "on her/his/their own" that can be replace by reflexive pronoun? <br/><br/><br/>Thanks.