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The past simple tense and past participle of all regular verbs end in -ed, for example, walked, stayed, laughed, etc. The question is how do we pronounce the -ed? The answer is, we can pronounce it in 3 ways:
If the base verb ends in /t/ or /d/, the -ed ending is pronounced as /ɪd/
• want – wanted ⇒ /ˈwɒnɪd/ or /ˈwɒntɪd/
• end – ended ⇒ /ˈendɪd/
If the base verb ends in unvoiced sound /p/, /f/, /s/, /ʃ/, /ʧ/, /th/, and /k/, the -ed ending is pronounced as /t/
• hope – hoped ⇒ /həʊpt/
• laugh – laughed ⇒ /lɑːft/
• fax – faxed ⇒ /fækst/
• wash – washed ⇒ /wɒʃt/
• watch – watched ⇒ /wɒʧt/
• like – liked ⇒ /ˈlaɪkt/
If the base verb ends in voiced sound /l/, /m/, /n/, /j/, /r/, /g/, /b/, /v/, /w/, and /z/, the -ed ending is pronounced as /d/
• play – played ⇒ /pleɪd/
• allow – allowed ⇒ /əˈlaʊd/
• beg – begged ⇒ /beɡd/
Note that it is the sound that is important in pronunciation, not the letter or spelling, for example, ‘fax’ ends in the letter x but the sound /s/; ‘like’ ends in the letter e but the sound /k/.
Now try to answer this question: Which sound do the following words end with?
1. answered – She answered the question correctly.
2. pushed – He pushed the button.
3. believed – I believed in you.
4. needed – Where were you when I needed you the most?
5. melted – The chocolate melted.