This is the 9886th most frequent Japanese word.
話せ
"話せ" means "can speak" or "speak" (imperative form).
話せます is the potential form of 話す (to talk), showing ability to speak.
私は日本語を話せます。
I can speak Japanese.
話せる is the potential form, used within indirect speech to signify capability.
彼は英語を話せると言っていました。
He said he could speak English.
話せる is used in a question to inquire about the possibility or ability to talk.