パーティーでみんなが楽しんでいるのを見て楽しかった

Meaning
it was fun to see everyone enjoying themselves at the party

Vocab used in this sentence

パーティー
party, parties
in, at, on, with, by, over, through
みんな
everyone, all, guys, everybody
is, there, but, ga, will, however
楽しむ
enjoy, have fun, have a good time, relish, anticipate, indulge
in, at, on, with, by, over, through
いる
are, to be, to stay, to have, necessary, to exist
to, of
o, the, to, wo
見る
see, watch, look, to see, to watch, show, view, to look at
the, it, have
楽しい
fun, enjoyable, pleasant, delightful, happy, entertaining, cheerful, merry, delectable, pleasurable
the, was, ta, da, other

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