Im a newbie. I need help regarding how to code combos

[Purplegoose64]

I took upon myself the task of making a Naofumi shield hero char but ive become stuck through the process. you see I need to find a way to do a crouch combo that uses "c" and crouch and move, so basically a haduken from street fighter. if you could help me with  that it would amazing! this is what I have done so far https://www.youtube.com/watch?v=jVTiT3zdoEU the baloon projectiles are triggered with c which I mapped Rb on my xbox controller filo is heavy attack which is B I made auto combo for her and Raphtalia. Raphtalia uses A which is auto combo. if you guys could teach me how to create crouch combos that would be awesome! thank you guys for the time Im looking forward to your rersponses!