"Mi ŝatas kudri."

Ya. The infinitive thing.

I actually like this aspect of learning languages. I believe you can not learn them in that strict, sequential way, each lesson only using the elements taught in previous lessons. By casually dropping a more advanced concept here and there, it feeds our curiosity and desire to improve our knowledge.

Yes, and where was no explanation of this grammar yet.

Nu, vi povas lerni kudri.