the methodology i normally use in my class is the communicative approach(i use this mainly with companies or students in B1 and B2)
Communicative Language Teaching
The idea behind this approach is to help learners communicate more effectively and correctly in realistic situations that they may find themselves in. This type of teaching involves focusing on important functions like suggesting, thanking, inviting, complaining, and asking for directions to name but a few.

And with student with basic level i use the grammar translation method.
Just like its name suggests, this method of teaching English is grammar heavy and relies a lot on translation. This is the traditional or ‘classical’ way of learning a language and it’s still commonly used when learning some languages. Some countries prefer this style of teaching and the main idea behind this method is that the students learn all grammar rules, so they’re able to translate a number of sentences. This is particularly common for those students who wish to study literature at a deeper level.
and also with kids from ages of 6-10 i use the dynamic method that is teaching them basic commands using poems,games and also mainly music to get them involved and interested.