ืชืืืืืืช ื ืคืืฆืืช ืืื ืืืืช: un-, re-, dis-, mis-, pre-, over-, under- ืืขืื. ืืืจื ืืืืืจื ืืืืคืื ืืช ืืืฆืจ ืืืืืื ืฉืื ืืื ืืืืช.
un- (not) โ unhappy
ืชืืืืืช un- = ืื; unhappy = ืื ืฉืื.
re- (again) โ rewrite
ืชืืืืืช re- = ืฉืื; rewrite = ืืืชืื ืืืืฉ.
dis- (opposite) โ disagree
ืชืืืืืช dis- = ืืคื; disagree = ืื ืืืกืืื.
mis- (wrong) โ misunderstand
ืชืืืืืช mis- = ืื ื ืืื; misunderstand = ืืืืื ืื ื ืืื.
pre- (before) โ preview
ืชืืืืืช pre- = ืืคื ื; preview = ืืฆืื ืืงืืืื.
over- (too much) โ overeat
ืชืืืืืช over- = ืืืชืจ ืืื; overeat = ืืืืื ืืืชืจ ืืื.
under- (too little) โ underpaid
ืชืืืืืช under- = ืืชืืช/ืืขื; underpaid = ืืฉืืื ืคืืืช ืืื.
in- (not) โ invisible
ืชืืืืืช in- = ืื; invisible = ืืืชื ื ืจืื.
im- (not) โ impossible
ืชืืืืืช im- = ืื; impossible = ืืืชื ืืคืฉืจื.
ir- (not) โ irregular
ืชืืืืืช ir- = ืื; irregular = ืื ืกืืืจ.
il- (not) โ illegal
ืชืืืืืช il- = ืื; illegal = ืื ืืืงื.
non- (not) โ nonsense
ืชืืืืืช non- = ืื; nonsense = ืฉืืืืืช.
anti- (against) โ antibiotic
ืชืืืืืช anti- = ื ืื; antibiotic = ืื ืืืืืืืืงื.
auto- (self) โ automatic
ืชืืืืืช auto- = ืขืฆืื; automatic = ืืืืืืื.
co- (together) โ cooperate
ืชืืืืืช co- = ืืื; cooperate = ืืฉืชืฃ ืคืขืืื.
ex- (former) โ ex-husband
ืชืืืืืช ex- = ืืฉืขืืจ; ex-husband = ืืขื ืืฉืขืืจ.
inter- (between) โ international
ืชืืืืืช inter- = ืืื; international = ืืื ืืืืื.
sub- (under) โ submarine
ืชืืืืืช sub- = ืชืช; submarine = ืฆืืืืช.
super- (above) โ supernatural
ืชืืืืืช super- = ืขื; supernatural = ืขื-ืืืขื.
trans- (across) โ transport
ืชืืืืืช trans- = ืืืฆื; transport = ืืืืื.
uni- (one) โ uniform
ืชืืืืืช uni- = ืืื; uniform = ืืืื.
bi- (two) โ bilingual
ืชืืืืืช bi- = ืฉื ืืื; bilingual = ืื-ืืฉืื ื.
multi- (many) โ multilingual
ืชืืืืืช multi- = ืจืืื; multilingual = ืจื-ืืฉืื ื.
semi- (half) โ semicircle
ืชืืืืืช semi- = ืืฆื; semicircle = ืืฆื ืขืืืื.
fore- (before) โ foresee
ืชืืืืืช fore- = ืืคื ื; foresee = ืืืืืช ืืจืืฉ.