Hello Milky I would agree. When people talk about a 'split infinitive', they usually mean that something has been inserted between the 'to' and the base form of the verb ('to really understand', etc). In your examples, 'to be accepted' is a passive infinitive, which consists of 'to be' + past participle, while 'to have thought' is a perfect infinitive, which consists of 'to have' + past participle.
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