You can, but if you don't regularly practice, your QWERTY proficiency will deteriorate startlingly quickly. It's easier to pick back up than learning a whole new layout, but still.
It was really unsettling to watch, in only two weeks, my QWERTY proficiency drop from "90 WPM burst speed" to "stare at the keyboard while I type".
It was really unsettling to watch, in only two weeks, my QWERTY proficiency drop from "90 WPM burst speed" to "stare at the keyboard while I type".