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Topic: Inflection

These resources cover how words change their form (typically by adding different endings) in different grammatical contexts. For example, the verb hop has the forms hop, hops, hopped and hopping.

Spelling: Double consonants

If a root word ends in a consonant, adding a suffix will sometimes require that you double the base word’s final consonant. How do you know when to double the consonant?

Consider the following examples, where doubled consonants are underlined.

  • shipment
  • shipped
  • muddy
  • fitful
  • fittest
  • waiting
  • greenest
    •

Now take a look at some larger words, whose base forms have more than one syllable.

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Spelling: Rules

At some point, many of us learned some handy spelling rules that we’ve carried with us for years.

Most people probably remember the mnemonic:

  • I before E except after C.

That’s a very useful rule for remembering how to spell believe and receive. But what about seize and seizure? And what about leisure, either, or heifer?

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Spelling: Spelling and word structure

Many common spelling errors occur with double consonants or vowel combinations, as in the following words:

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Spelling: Suffixes

Suffixes cause many of our common spelling mistakes. One challenge is simply to know which is correct: for example, legible or legable? In fact, −ible and −able serve the same function, and sound the same. As a matter of history, -ible entered English from Latin, while −able entered English from French, but there’s no easy rule for knowing when to use which suffix. Each word with each suffix just requires practice.

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Spelling: Suffixes and 'e'

If an original word ends in a final e, as in manage,adding a suffix will sometimes require that you drop the final e in the root word.

  • Drop the final e: managing
  • Keep the final e: management

How do you know when to drop the final e?

First, consider the following examples, which either drop or keep the final e.

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Spelling: Suffixes and 'y'

When a word ends in y, adding a suffix will sometimes require that we change the y to an i or to an ie. How do you know when to change the y?

Look through the examples below and the rules that follow.

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Verbs: Tense

Tense is a grammatical notion that refers to the way in which a language encodes the real world notion of time. Typically this is done through endings on verbs called inflections. Verbs are the only word class that can carry tense inflections (though they don't always do so). Verbs that carry a tense ending are called finite verbs.

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Word structure

The study of word structure is called morphology. Understanding word structure helps us:

  • improve spelling
  • expand vocabulary

In studying word structure, we start by looking at a few key concepts first:

  • root words
  • prefixes
  • suffixes

Root words are words, or parts of words, that can usually stand alone. The following are all root words:

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Word structure: Inflection

Inflection is the process by which a single word takes different forms. For example, if we have the noun cat, we can add a plural ending to it to create cats. This is known as inflecting a noun and the ending we add is called a suffix.

What are the plural forms of the following nouns?

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