How do I make a combo?

how do i make a combo system like in a beat em up game

Search the forums and the tutorials, there are threads about it already that should be able to answer your questions.

basically it is just: start a timer when the first key is pressed, as long the keys are in the time and fit to a combo pattern, record the keys pressed. As soon the timer ran out or the pattern does not fit to any combo anymore, start the timer from 0 and restart the key recording.

ahaha i really have no idea how to do that xd but thanks anyway for the response