US or UK English? If US English, essentially no. US keyboards use the ANSI keyboard layout (flat, long enter key, "\" button above Enter), while UK English (and German) keyboards use ISO key layouts (chunky, two-level enter key directly below Backspace). Converting between the two would at the very minimum require desoldering and resoldering switches on the boards PCB, although they probably use different PCBs to begin with. Converting within ISO layouts is as simple as getting a new set of keycaps. In all likelihood you won't find a set of original CM keycaps - why should they sell them separately, after all, when they'd rather sell you a full keyboard? - but any Cherry MX-compatible keycap set you like the looks of should do the trick.
Here's a suggestion 