The most tricky corrective pattern is the Expanding Triangle.
It’s barely possible to identify it until the very last moment when it is about to get completed.

That structure is composed of five subwaves labelled a-b-c-d-e and every subwave has a clean subdivision into three small waves:

That wave count argues that the crazy short squeeze rally we got on Thursday, Nov 10th was the final subwave -a- of a corrective wave B up shaped as the Expanding Triangle.
That wave count argues that this rally be followed by another strong decline in wave C of (Y) down targeting new lower lows.