~つもりです
Say what you plan to do
You’ll be able to state your intentions and plans for the near future clearly.

週末は家族とキャンプに行くつもりです。
shuumatsu wa kazoku to kyanpu ni iku tsumori desu.
What do you think this sentence means?
I plan to go camping with my family this weekend.
State an intention or plan
Use ~つもりです for an intention you have already decided on. It is stronger than simply saying what you want to do.
来年、日本に行くつもりです。
rainen, nihon ni iku tsumori desu.
I intend to go to Japan next year.
Plan to do something
Put a dictionary-form verb before つもりです for an affirmative intention.
週末、部屋を掃除するつもりです。
shuumatsu, heya o souji suru tsumori desu.
I plan to clean my room this weekend.
大学で日本語を勉強するつもりです。
daigaku de nihongo o benkyou suru tsumori desu.
I intend to study Japanese at university.
来月、新しいパソコンを買うつもりです。
raigetsu, atarashii pasokon o kau tsumori desu.
I plan to buy a new computer next month.
Plan not to do something
Use the ない-form before つもりです for an intention not to do an action.
今日は出かけないつもりです。
kyou wa dekakenai tsumori desu.
I plan not to go out today.
もうお酒は飲まないつもりです。
mou osake wa nomanai tsumori desu.
I intend not to drink alcohol anymore.
今年は車を買わないつもりです。
kotoshi wa kuruma o kawanai tsumori desu.
I do not plan to buy a car this year.
~たい vs ~つもりです
たい is a wish, which may never happen. つもり is a decision you have already made.
つもり, decided
来年、日本に行くつもりです。
rainen, nihon ni iku tsumori desu.
I intend to go to Japan next year.
The plan is settled.
たい, wish
日本に行きたいです。
nihon ni ikitai desu.
I want to go to Japan.
The wish is real, but nothing is booked.
来年、日本へ行くつもりです。
rainen, nihon e iku tsumori desu.
I plan to go to Japan next year.
今夜、家で日本語を勉強するつもりです。
kon'ya, ie de nihongo o benkyou suru tsumori desu.
I plan to study Japanese at home tonight.
兄は土曜日に車を洗うつもりです。
ani wa doyoubi ni kuruma o arau tsumori desu.
My older brother plans to wash the car on Saturday.
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