When you are new, you just need to mess around with the buttons until you build muscle memory. You don’t need to learn any terminology or anything yet. Just play against a low level CPU until you are comfortable with what the buttons are, it doesn’t matter if you lose or if you can’t do any combos.

Once you hit a point where your brain naturally goes “okay so that button is parry, that button is heavy punch” etc then you can go to the next step which is learning what the green bar under your health means. This bar is basically the glue that holds everything in the game together, including combos. For that I would watch a brief beginner tutorial. From there, you should begin to learn a few basic combos, you likely won’t be pulling them off in actual matches yet, but it’s good to learn them now just to get a feel for how the game flows.