English speaking courses typically address the use of formal and informal language by introducing learners to various contexts where different levels of formality are required. The emphasis on each depends on the course’s objectives, the learners’ needs, and the cultural nuances of the English language. A well-rounded course will typically cover both to some extent, ensuring that learners can adeptly navigate a variety of social situations.

In teaching formal language, courses may cover:
1. Grammar: A stronger focus on correct grammatical structures often characterizes formal language instruction.
2. Vocabulary: Courses introduce higher-level, less common words that are appropriate for formal contexts.
3. Pronunciation: Clear and precise pronunciation may be stressed more in formal situations.
4. Register: Instruction on the appropriate formality level for different settings, such as business meetings, academic settings, or official communications.
5. Writing/Formal Correspondence: Written language, particularly in emails and letters, often calls for a more formal tone, which courses usually address.

For informal language, courses might include:
1. Everyday Vocabulary: Teaching common phrases and expressions used in casual conversation.
2. Slang/Idioms: Instruction might involve idiomatic expressions or slang that is often used in informal contexts.
3. Social Language: Courses may incorporate language used in social settings, like hanging out with friends or chatting online.
4. Pronunciation and Intonation: A more relaxed approach to speaking, including natural intonation