There are three rules you can use to remember how to pronounce the letter “s” when it falls at the end of a word.
1. “s” is pronounced as /s/ after these sounds;/p/,/t/,/f/, /k/, & voiceless th.
2. “s” is pronounced as /ez/ after these sounds; /s/, /z/, /sh/, /ch/ & /j/.
3. “s” is pronounced as /z/ after all other sounds.
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