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| Singular | Plural | Singular | Plural | |
|---|---|---|---|---|
| alloy | alloys | joy | joys | |
| bay | bays | key | keys | |
| boy | boys | kidney | kidneys | |
| chimney | chimneys | monkey | monkeys | |
| day | days | play | plays | |
| decoy | decoys | ray | rays | |
| delay | delays | toy | toys | |
| donkey | donkeys | tray | trays | |
| guy | guys | trolley | trolleys | |
| jersey | jerseys | valley | valleys | |
| journey | journeys | way | ways |