Irregular and defective behaviour
Know when a high-frequency verb should not be forced into a regular table.
Хотеть and бежать mix historically different patterns. Defective verbs such as победить may avoid an ordinary я form in careful usage.
- A class label does not erase irregular stems.
- Mixed paradigms must be learned as complete paradigms.
- A theoretically imaginable form is not always idiomatic.
Advanced pattern
Historical conjugation classes explain mixed patterns, but beginner production should rely on verified forms.