Question by magical 31: why does the plural form of thief is thieves and chief is chiefs, proof is proofs, and scarf is scarfs?
the rule says that if a singular noun ends in f or fe change f and fe to ve and add s. ex. wife-wives or leaf-leaves.
Answer by MikeInRI
In english grammar there are always exceptions to every rule – they don’t have to have a rhyme or reason to them.
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