過去は楽しい思い出でいっぱいだ

過去: past, last, history, historical, previous
は: a, the, is, am, are, will
楽しい: fun, enjoyable, pleasant, delightful, happy, entertaining, cheerful, merry, delectable, pleasurable
思い出: memories, memory, reminisce, recollection, recollections, fond memories, remembrance
で: in, at, on, with, by, over, through
いっぱい: full, filled, a lot, packed, plenty, satisfied
だ: is, be, are, am, it is, seems