When you add a suffix to a word ending in 'fer' you sometimes need to double the 'r', but how do you know when? When you add a suffixes and the second syllable of the new word is stressed, then you ...

Learn how to use a range of prefixes to form and spell words. Suffixes and how to use them Learn how to use a range of suffixes to change the meaning of words. Using suffixes to show tenses Learn how ...