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Week Spelling rule or pattern 1 2 Adding -ible & -able suffixes -able is far more common than –ible. -able usually used when you can hear a complete root word before it e.g. comfortable. It is also used if there is a related word ending in –ation. -ible suffix is common when root word cannot be heard e.g. possible. When adding a suffix beginning with a vowel to a word ending in ‘consonant, e’, the letter ‘e’ is usually removed (e.g. adorable). If –able ending is added to a word ending in –ce or –ge, the root keeps the ‘e’ otherwise the ‘c’ and ‘g’ sounds would be hard (as in cup & gap). When adding –able to a root ending in ‘y’, the ‘y’ changes to an ‘i’ unless preceded by a vowel (e.g. reliable but enjoyable). 3 Use of hyphen Hyphens can be used to join a prefix to a root word, especially if the prefix ends in a vowel & the root word begins in one. 4 ‘i’ before ‘e’ except after ‘c’ This rule applies for words where the letters ‘i’ and ‘e’ together make an ‘ee’ sound. 5 Adding suffixes beginning with a vowel to roots ending in –fer The ‘r’ is doubled if the –fer is still stressed when the ending is added. The ‘r’ is not doubled if the –fer is no longer stressed. Examples of words following the rule (useful exceptions in brackets) horrible terrible visible legible incredible responsible possible impossible edible inedible reversible irreversible invincible susceptible (indestructible) (sensible) co-ordinator re-enter re-read co-operation co-own pre-existing pre-empt pre-eminent co-existing de-escalate brief chief grief piece achieved receive deceive ceiling perceive relief believe retrieve (protein) (caffeine) (seize) referring referred preferring preferred transferring transferred reference referee preference transference inference conference deference Weekly tricky words recommend relevant restaurant immediately soldier stomach sufficient suggest twelfth variety adorable respectable forgivable disposable agreeable dependable comfortable enviable identifiable enjoyable valuable breakable reliable understandable changeable applicable considerable signature sincere Year 6 Term 2 Spelling objectives and tricky words 6 Homophones In some pairs of homophones where one is a noun and one is a verb, the nouns end in ‘ce’ and the verbs end in ‘se’. A useful clue – advise (verb) is pronounced with a ‘z’ sound which cannot be spelt ‘c’. advice/advise device/devise licence/license practice/practise prophecy/ prophesy vegetable vehicle yacht