〜ものだ has three main uses depending on context:
Nostalgia (past tense) - Reminiscing about things you used to do
General truth - Stating what''s natural, expected, or common sense
Advice/expectation - What one should do or how things should be
I used to play in the river as a child.
It''s natural that everyone makes mistakes.
Casual form: もんだ
Past + ものだ = nostalgia (used to)
Present + ものだ = general truth / advice
Casual: もんだ (very common in speech)
Promises should be kept.
I used to come here a lot back then.
Find real examples
Discover this pattern in manga, dramas & more
Save for spaced repetition
Add sentences to your study deck
Practice 〜ものだ and other grammar patterns with manga, dramas, and more.
Start learning free