Episode 33
Wanting To Do — ~たい
Express what you want to do in Japanese. Built from the ます stem and conjugates like an い-adjective — you already know the rules.
Last episode you learned ほしい for wanting things. But what about wanting to do something? Eat pizza. Go to Japan. Read a book. That is a completely different ending — and it is built from something you already know.
What You'll Learn#
want to do [verb] — attach たい to the ます stem, conjugates like an い-adjective
食べたい (want to eat), 行きたい (want to go)
New vocabulary: 〜たい (want to do), 食べたい (want to eat), 飲みたい (want to drink), 行きたい (want to go), 買いたい (want to buy), ピザ (pizza), 日本料理 (Japanese cuisine), 靴 (shoes)
Lesson Transcript#
Building たい From the ます Stem#
You already know the ます form of verbs from episode sixteen. 食べる becomes 食べます. The stem — the part before ます — is 食べ. To say you want to eat, take that stem and attach たい.
| ます Form | Stem | + たい | Meaning |
|---|---|---|---|
| 食べます | 食べ | 食べたい | want to eat |
| 飲みます | 飲み | 飲みたい | want to drink |
| 行きます | 行き | 行きたい | want to go |
| 見ます | 見 | 見たい | want to watch |
| 読みます | 読み | 読みたい | want to read |
| 買います | 買い | 買いたい | want to buy |
It Conjugates Like an い-Adjective#
Here is the part that should feel like cheating — the word you just built ends in い, so it behaves as an い-adjective. Everything you learned back in episode twenty-five applies directly.
| Form | Rule | Example |
|---|---|---|
| Positive | + たい | 食べたい (want to eat) |
| Negative | drop い, + くない | 食べたくない (do not want to eat) |
| Past | drop い, + かった | 食べたかった (wanted to eat) |
| Past negative | drop い, + くなかった | 食べたくなかった (did not want to eat) |
Nothing new to memorize. The whole system compounds.
In a Real Sentence#
I want to eat pizza.
ピザが食べたいです。
ピザが食べたい。
I want to eat Japanese food.
日本料理が食べたいです。
日本料理が食べたい。
I want to buy shoes.
靴を買いたいです。
靴を買いたい。
Particle Flexibility: が or を#
Here is something most textbooks bury — with たい, you get to choose between が and を. Both are correct.
- ピザが食べたい。 — が emphasizes the feeling. Pizza is what I am craving.
- ピザを食べたい。 — を is more neutral. I want to eat pizza, matter-of-factly.
Same meaning, subtle difference in flavor. Native speakers use both. Pick whichever feels right in the moment.
Key Takeaway
たい attaches to the ます stem, and the result is an い-adjective. You already know how to make it negative (たくない), past (たかった), and past negative (たくなかった). One new piece unlocks four forms.
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