Chapter 19
https://www.usu.edu/markdamen/Latin1000/Chapters/19ch.htm29.12.2021 · The Formation of the Perfect Passive in Latin and English. In Latin, the sense of past tense is included in the participle, not as in English in the form of the verb "to be." That is, Latin says laudatus sum, literally "I am + having been praised" (i.e. "I now exist in a state of having been praised in the past").
Latin tenses - Wikipedia
en.wikipedia.org › wiki › Latin_tensesThe perfect passive is usually made with the perfect participle combined with sum, e.g. missus sum 'I was sent, I have been sent', ductus sum 'I was led, I have been led'. Some perfect tenses have an irregular stem, for example sum, fuī 'I am', eō, īvī 'I go', ferō, tulī 'I bring, I bear', tollō, sustulī 'I raise, I remove'.
LatinTutorial
https://latintutorial.com/videos/pluperfect-passive21.02.2012 · LatinTutorial. Latin doesn't have to be hard, and with the help of online descriptions of complicated grammatical topics, I hope it isn't. If you're a teacher, feel free to use these videos in your class, either to flip the learning, or for review. If you're a student, learn as much as you can.
Latin tenses - Wikipedia
https://en.wikipedia.org/wiki/Latin_tensesThe active perfectum tenses of Latin verbs are made using a different stem from the present tense. For example, dūcō 'I lead' makes the perfect tense dūxī 'I led'; faciō 'I do' makes fēcī 'I did'; sum 'I am' makes fuī 'I was' and so on. The perfect tenses can be found in dictionaries; see Latin conjugation for some examples. In all verbs, perfect tenses have the same personal endings. For example, the six persons (I, you …