This is the 4635th most frequent Spanish word.
cambie
"Change" (subjunctive or formal command form of "cambiar").
Here, 'cambie' is used as a formal command in the imperative mood directed towards the second person singular.
Por favor, cambie el canal de televisión.
Please, change the television channel.
Here, 'cambie' is used in the subjunctive mood to express a necessity or wish.
Es importante que él cambie su actitud.
It is important that he changes his attitude.
Here, 'cambie' is used in the subjunctive mood triggered by the expression of doubt.