This is the 10003rd most frequent Spanish word.
cambien
"Change" (third-person plural subjunctive form of "cambiar").
In this sentence, 'cambien' is used as the subjunctive form of 'cambiar,' expressing recommendation or expectation regarding attitude change.
Es importante que ellos cambien su actitud hacia el trabajo.
It is important that they change their attitude toward work.
Here, 'cambien' is the present subjunctive plural form, indicating what is desired or avoided regarding the rules.
No quiero que cambien las reglas sin consultar primero.
I don't want them to change the rules without consulting first.
In this instance, 'cambien' is in the imperative mood, addressing a command or suggestion particularly to a plural subject.