つもり and 予定: intentions and plans
An intention and an arranged plan are not quite the same. Learn how to connect つもり and 予定 without treating either as a guarantee about the future.
Express an intention with つもり
来年、日本語を勉強するつもりです。 means 'I intend to study Japanese next year.' Dictionary form + つもりです expresses the speaker's intention, even if detailed arrangements have not yet been made.
行かないつもりです expresses an intention not to go. 行くつもりはありません says that there is no intention to go. They can fit similar situations, but distinguish intending not to act from not having an intention to act.
Describe an arrangement with 予定
来週、出張する予定です。 means 'I am scheduled to go on a business trip next week.' 予定 describes an arranged plan. With a noun, use の, as in 来週は出張の予定です.
会議は三時に始まる予定です。 describes a meeting scheduled to start at three. つもり normally concerns a participant with an intention, so do not replace 予定 as though the meeting itself had intentions.
Do not overstate certainty
つもり is not necessarily a weak wish, and 予定 does not guarantee fulfillment. A strong intention may remain unrealized, and an arranged schedule may change. Keep the expression separate from the real-world certainty of the plan.
Write two sentences about next week. Try つもり for something you personally intend to do and 予定 for an arranged activity, then explain why each expression fits the information you want to convey.
Check: Which naturally describes a meeting scheduled to start at three: つもり or 予定?
Show the answer and why
会議は三時に始まる予定です。 is natural because it describes an arranged schedule, not an intention held by the meeting itself.