Почему люди лгут??? нужно 3 причины. на английском языке пожалуйста!!!!!

The reasons why people lie:
1.People lie,because they afraid to tell the truth.
2.People lie,because they want to be better,
3.People lie,because it is an achievement of their purposes.

1.They think that it is better then true.
2.Sometimes it helps people in working,studing etc.
3.People live in lie and they don't know where is the true