@JeremyECrawford can I use a ki point to flurry of blows if the weapon used in my action isn't a monk weapon?

— Chaotical (@_Chaotical) September 20, 2017

Flurry of Blows can be used right after you take the Attack action, no matter what you did with that action. #DnD https://t.co/AAteGvtiW5

— Jeremy Crawford (@JeremyECrawford) September 20, 2017

How does Extra Attack factor in? Can you Flurry of Blows after either attack? Flurry of Blows happens after the Attack action, not after attacks within that action.

— Jeremy Crawford (@JeremyECrawford) September 20, 2017

Doesn’t that force you to do it after the first attack then?That forces you to do it after all the attacks in the Attack action. Flurry of Blows is after the whole action.

— Jeremy Crawford (@JeremyECrawford) September 20, 2017

I’m clarifying because this brings into question when exactly you “take” an action, which potentially impacts many rules. Like TWF. When you take an action, the action happens. There is no abstract "take an action" step that takes place before the action itself.

— Jeremy Crawford (@JeremyECrawford) September 20, 2017