7.3 Inflectional Endings, Homophones, & Contractions

7.3 Inflectional Endings, Homophones, & Contractions

Inflectional Suffixes vs. Derivational Morphemes

Morphology—the study of word structure—is vital for advanced word identification. Suffixes are bound morphemes affixed to the end of a base word:

• Inflectional Suffixes: Grammatical morphemes altering tense, number, aspect, or degree without changing the base word's part of speech or core meaning. Adding -ed to the verb walk produces walked (still a verb); adding -s to the noun dog produces dogs (still a noun). English features eight primary inflectional suffixes:
  1. Plural: -s/-es (cats, boxes)
  2. Possessive: 's/s' (girl's, girls')
  3. Past Tense: -ed (walked, played, landed)
  4. Present Participle: -ing (jumping, singing)
  5. Third-Person Singular: -s/-es (runs, watches)
  6. Past Participle: -en/-ed (eaten, baked)
  7. Comparative: -er (faster, taller)
  8. Superlative: -est (fastest, tallest)
• Derivational Suffixes: Morphemes that create new words by changing part of speech or meaning (teach [verb] $\rightarrow$ teacher [noun]; care [noun] $\rightarrow$ careless [adjective]).

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Three Phonological Realizations of Past Tense -ed

English orthography is morphophonemic: it maintains consistent spelling for morphemes even when their phonetic pronunciation shifts. Past tense -ed has three distinct pronunciations determined by the voicing of the base word's final sound:

1. /t/ (Voiceless Stop):
   • Follows base words ending in unvoiced / voiceless consonant sounds (except /t/): /p, k, f, s, ʃ, tʃ/.
   • Examples: skipped (/skɪpt/), hopped (/hɒpt/), kicked (/kɪkt/), laughed (/læft/), washed (/wɒʃt/).
   • Mechanics: Vocal cords do not vibrate; suffix assimilates to voiceless /t/.
2. /d/ (Voiced Stop):
   • Follows base words ending in voiced consonant sounds (except /d/) or any vowel sound (all English vowels are voiced): /b, ɡ, v, z, dʒ, m, n, ŋ, l, r/ and vowels.
   • Examples: played (/pleɪd/), grabbed (/ɡræbd/), begged (/bɛɡd/), buzzed (/bʌzd/), called (/kɔːld/).
   • Mechanics: Vocal cords continue vibrating smoothly through the suffix.
3. /ɪd/ or /əd/ (Epenthetic Syllable):
   • Follows base words ending in alveolar stop consonants /t/ or /d/.
   • Examples: landed (/lændɪd/), waited (/weɪtɪd/), planted (/plæntɪd/).
   • Mechanics: Consecutive alveolar stops require vocalic release, adding an extra syllable.

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Base Word Spelling Rules for Suffix Addition

When attaching vowel suffixes (-ing, -ed, -er, -est) to base words, students apply three core rules:

1. The 1-1-1 Doubling Rule

In a single-syllable base word containing 1 short vowel followed by 1 final consonant, double the final consonant before adding a vowel suffix:

• hop + -ing = hopping (doubling preserves the short vowel; without it, hoping represents hope).
• run + -er = runner; fit + -ed = fitted.
• Non-examples: jump + -ing = jumping (ends in 2 consonants); heat + -ing = heating (2 vowels).

2. The Drop Silent-e Rule

When a base word ends in silent e, drop the e before adding a vowel suffix:

• make + -ing = making; bake + -er = baker; hope + -ed = hoped.
• Retain e before consonant suffixes: hope + -ful = hopeful; care + -less = careless.

3. The Change Y to I Rule

When a base word ends in a consonant followed by y, change y to i before adding any suffix:

• baby + -es = babies; cry + -ed = cried; happy + -er = happier.
• Exception 1: Keep y if suffix begins with i to avoid double-i (crying, babyish).
• Exception 2: If preceded by a vowel team, keep y (played, boys).

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Homophones, Homographs, and Contextual Resolution

When reading homographs, phonics alone cannot specify pronunciation. Readers must evaluate sentence syntax (e.g., noun vs. verb) and semantic context to select the appropriate phonological form.

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Contractions: Orthographic Structure & Function

A contraction combines two words into a shortened form, using an apostrophe (') as an orthographic placeholder for omitted letters (do not $\rightarrow$ don't; cannot $\rightarrow$ can't; they are $\rightarrow$ they're). Apostrophes never indicate plurality. Students must explicitly contrast contractions with possessive pronouns: it's (it is) vs. its (possessive); they're (they are) vs. their (possessive) vs. there (adverb).

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Teaching Self-Monitoring in Connected Text

Self-monitoring is a metacognitive habit where readers evaluate their own accuracy during reading:

1. "Does it look right?" (Visual / Orthographic): Does pronunciation align with all letters, base words, and affixes? (Primary decoding anchor).
2. "Does it sound right?" (Syntactic): Does the word match English grammar and syntax?
3. "Does it make sense?" (Semantic): Does the meaning align with passage context?

Self-monitoring is not three-cueing guessing. Accurate decoding comes first; syntax and semantics serve as checks that confirm accuracy or trigger re-decoding.

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Classroom Scenario: Morphological Suffix Remediation

During oral reading, second-grader Marcus reads: "The boy hopped over the fence and planted a seed." Marcus pronounces hopped as /hoʊpt/ (rhyming with hoped) and planted as /plæntd/. In writing, he spells stopped as stoped.

Intervention: Mr. Chen provides targeted morphological and phonological coaching:

1. Voicing Check: Marcus places fingers on his throat. He discovers that hop ends in unvoiced /p/, so adding -ed sounds like /t/ (hopped /hɒpt/). For plant, ending in /t/, an extra syllable /ɪd/ is added (planted /plæntɪd/).
2. Tile Manipulation (1-1-1 Rule): Mr. Chen models hop (1 syllable, 1 short vowel, 1 consonant). He doubles the p before adding -ed to protect the short vowel (hopped).
3. Self-Monitoring: Returning to text, Marcus checks: "Does it look right? Two p's mean short vowel—hopped! Does it make sense? Yes!"