In a code language, 'people are confident' is written as 'lur bur duk', 'we are helpful' is written as 'kur duk sur', 'we have cars' is written as 'sur mur jur' and 'people have honesty' is written as 'lur jur nur'. What is the code for 'confident'?

bur

The pattern here is;

people  are  confident  =  lur  bur  duk

we  are  helpful  =  kur  duk  sur

we  have  cars  =  sur  mur  jur

people  have  honesty  =  lur  jur  nur

Thus, bur is coded for confident.