English Word Formation Allomorphy
(1) Isolate and define (basic sound + meaning) the derivational prefix(es) in the English data listed in the table below. Is there one or two prefixes?
Prefix No. 1:
Prefix No. 2?:
legal |
illegal |
competent |
incompetent |
convenient |
inconvenient |
relevant |
irrelevant |
accurate |
innaccurate |
grateful |
ungrateful |
pure |
impure |
insightful |
uninsightful |
duly |
unduly |
natural |
unnatural |
moveable |
immoveable |
legitimate |
illegitimate |
legible |
illegible |
repressible |
irrepressible |
perfect |
imperfect |
mature |
immature |
breakable |
unbreakable |
protected |
unprotected |
probable |
improbable |
manageable |
unmanageable |
manly |
unmanly |
usual |
unusual |
eligible |
ineligible |
level |
unlevel |
(2) Describe their allomorphs of either prefix.
Allomorphs of prefix No. 1:
Allomorphs of prefix No. 2:
(3) Are the conditions purely phonological or morphological?
Prefix No. 1
Prefix No. 2
Finally, if you claim that either set of allomorphic rules are morphologically determined, explain why you think so here: