大過去

だいかこ

pluperfect

過去最多

かこさいた

record highest (in number), most on record

過去最少

かこさいしょう

fewest ever; fewest on record; record-low

過去最悪

かこさいあく

record low, worst ever

過去最高

かこさいこう

best ever, record high

過去最低

かこさいてい

record low, lowest ever

過去は過去

かこはかこ

the past is the past; let bygones be bygones

過去

かこ

a past (i.e. a personal history one would prefer remained secret), one's past

過去形

かこけい

past tense

過去帳

かこちょう

(family) death register

過去世

かこぜ

one's previous life

過去問

かこもん

past (exam) question collection

過去作

かこさく

past work (book, film, etc.); previous title

近過去

きんかこ

recent past tense (e.g. passato prossimo in Italian); present perfect

遠過去

えんかこ

remote past tense (e.g. passato remoto in Italian)

過去生

かこせい

one's previous life

半過去

はんかこ

imperfect tense

過去ログ

かこログ

archive (of an online mailing list, message board posts, etc.)

過去１

かこいち

most... ever; most... up to now; more... than ever before