If you wish to teach in state schools, you normally need a state-recognised teaching certificate/licence, If you wish to teach in the university sector, you will probably need an MA in Applied Linguistics/TEFL. If you wish to teach in private language schools, then a TEFL certificate, preferably an internationally recognised one such as CELTA or the Trinity CertTESOL, will increase your chances of finding employment. In most countries, it is generally harder for a non-native speaker to find a TEFL job than for a native speaker.
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