All other verbs need the verb “to do” to make a sentence negative: to do + not
I work. - I don’t work.
You work. - You don’t work.
He works. - He doesn’t work. (remember: he/she/it = 1x s)
She works. - She doesn’t work. (remember: he/she/it = 1x s)
It works. - It doesn’t work. (remember: he/she/it = 1x s)
We work. - We don’t work.
You work. - You don’t work.
They work. - They don’t work.