"Aimer" - To love:
* Past simple: "aima" (he/she/it liked)
* Past perfect: "avait aimé" (had liked)
* Past imperfect: "aimait" (liked, was liking)
* Past conditional: "aurait aimé" (would have liked)
"Plaire" - To please:
* Past simple: "plut" (it pleased)
* Past perfect: "avait plu" (had pleased)
* Past imperfect: "plaisait" (pleased, was pleasing)
* Past conditional: "aurait plu" (would have pleased)
"Trouver" - To find:
* Past simple: "trouva" (he/she/it found)
* Past perfect: "avait trouvé" (had found)
* Past imperfect: "trouvait" (found, was finding)
* Past conditional: "aurait trouvé" (would have found)
"Agréer" - To agree to:
* Past simple: "agréa" (he/she/it agreed to)
* Past perfect: "avait agréé" (had agreed to)
* Past imperfect: "agréait" (agreed to, was agreeing to)
* Past conditional: "aurait agréé" (would have agreed to)
"Apprécier" - To appreciate:
* Past simple: "apprécia" (he/she/it appreciated)
* Past perfect: "avait apprécié" (had appreciated)
* Past imperfect: "appréciait" (appreciated, was appreciating)
* Past conditional: "aurait apprécié" (would have appreciated)
Remember that the past tense you use depends on the specific situation and verb conjugation.