- Spelling of plurals: when to use ‘s’ or ‘es’
- Spelling -o nouns -os or -oes tomato – tomatoes, logo – logos, . . .
- Doubling a consonant before -ed or -ing put – putting, refer- referred, . . .
- Doubling a consonant before -er or -est hot – hotter, big – biggest, . . .
- Adverbs ending in -ely, -ly, -lly definitely, probably, beautifully, . . .
- Changing -y to -ies, -ied try – tries, hurry – hurries, . . .
See also: Stuart’s article on spelling words with ‘ie’ or ‘ei’.