past -ed
Core Rule
Regular verbs form the past tense/participle with -ed. Spelling is fixed, but pronunciation varies: /t/, /d/, or /ɪd/. The decision depends on the final sound, not the final letter.
Articulation Guide
- After voiceless sounds (except /t/): /t/ with a clean air release. 2) After voiced sounds or vowels (except /d/): /d/ with vocal cord vibration. 3) After /t/ or /d/: /ɪd/ with an added vowel.
Word Analysis
allegedly: stem ends in voiced /dʒ/, so -ed = /d/. assorted, complicated: stems end in /t/, so -ed = /ɪd/.
Pitfalls
-ed is not always /ɪd/; rely on phonetics, not spelling.
Phonics Breakdown
Feel voicing: no vibration → /t/; vibration → /d/; after /t/ or /d/, add short /ɪ/.
Sound Reference
- Check voicing of the final sound before choosing /t/ or /d/.
- After /t/ or /d/, default to /ɪd/.
Common Mistakes
Pronouncing all -ed as /ɪd/.
Deciding by spelling instead of sound.