APPENDIX 7: SPELLING: -ed/-er/-est FORMS

USUALLY

word + ed   work - worked

word + er   work - worker, cold - colder

word + est   cold - coldest

BUT

If word already ends with e, do not write it again.

manage - managed - manager

decide - decided - decider

late - later - latest

fine - finer - finest

If word ends with consonant + y (Appendix 4), y --> i

carry - carried - carrier

worry - worried - worrier

happy - happier - happiest

dirty - dirtier - dirtiest

but note that vowel + y is regular:

play - played - player

If word ends with one vowel + one consonant (Appendix 4), double the consonant.

big - bigger - biggest

thin - thinner - thinnest

hot - hotter - hottest

fit - fitted - fitter

stop - stopped - stopper

permit - permitted

but do not double if the last part of the word does not have any stress (Appendix 4):

develop - developed - developer

and do not double if word ends with

two vowels + one consonant:

green - greener - greenest

one vowel + two consonants:

talk - talked - talker

one vowel + x:

mix - mixed - mixer

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Appendix 8