Past tense of 'circularise': made circular, or distributed to many people via circular notices (British spelling).
The regular past tense formation of 'circularise,' adding '-ed' to the verb stem. Follows standard British English conjugation patterns.
Every time someone uses the past tense of a word that ends in '-ise,' they're unconsciously participating in the British spelling tradition—a small rebellion that survived centuries of American standardization attempts.
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