That being said, only focusing on learning, comprehensible input can be a great way to improve a language that you can already speak. Once you're more or less fluent, the language is already part of you and you can focus more on your comprehension skills and expanding your vocabulary.

Is comprehensible input necessary?

'comprehensible input' is the crucial and necessary ingredient for the acquisition of language. The best methods are therefore those that supply 'comprehensible input' in low anxiety situations, containing messages that students really want to hear.

Why is comprehensible input so important?

Comprehensible input is not only about the choice of words that the teacher uses when conversing with the students. ... The experience of trying to piece together the meaning of other words helps students create a higher engagement with the language and deepens students understanding and retention.