"spoilt" is an adjective there, not a passive verb. However, an active-verb construction with similar meaning would be "The parents [say] have spoilt this child". "That point spoils this child" does not make sense (or would be a cryptic and head-scratching thing to say).
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GPY"spoilt" is an adjective there, not a passive verb. However, an active-verb construction with similar meaning would be "The parents [say] have spoilt this child"."That point spoils this child" does not make sense (or would be a cryptic and head-scratching thing to say).I think "spoilt" is past participle.In OALD,
AnonymousI think "spoilt" is past participle.In OALD, The bad news has spoilt my day.It is a past participle in that sentence.