Easy.
The family and their friends keep to themselves and never talk to anyone else.
Some people like to inflict pain on themselves.
Some people love tanning themselves on a beach.
In the winter animals may have to adapt themselves to there surroundings
Environmentalists must disabuse themselves of the notion that they can decide what is best for the rest of society.
His true colours began to reveal themselves as he laughed at my failed attempts on the hurdles.
Many famous people from the 1700's and 1800's wrote autobiographies about themselves.
The children misbehaved themselves at dinner. ( misbehave: To behave (oneself) in an inappropriate way)
She was paranoid with letting her kids go on a roller coaster by themselves for the first time.
A man looked at himself in the mirror and saw...
They are themselves while he is not like himself.
Can you use the word concluding in a sentence? Done.
You can use the word Truss in a sentence like this.