mistake

1

I did a mistake on the form and wrote the wrong date.
I made a mistake on the form and wrote the wrong date.

Use make, not do, with mistake: ‘make a mistake’, ‘make mistakes’.

See our grammar lesson on the difference between do and make.

2

I put my sister’s book in my bag for mistake.
I put my sister’s book in my bag by mistake.

Use by mistake when you did something but did not mean to. Do not use for mistake with this meaning.