me vs I

people vs persons

few vs a few

economic vs economical

can vs may

advice vs advise

complement vs compliment vs supplement

admission vs admittance

altogether vs all together

beside vs besides

broad vs wide

continual vs continuous

affect vs effect

doubt, doubtful

each

either

equally as

every one vs everyone

fewer vs less

insure vs ensure vs assure

prescribe vs proscribe

responsible

politic vs political

unaware vs unawares

unique

sociable vs social

differ