Lesson 14 — Volitional Expressions: Trying, Wanting, and Before Doing


Overview

This lesson covers three related expressions for talking about intentions and desires: trying something out, doing something before another action, and expressing what you want — both actions and objects.


Pattern 1: て-form + みる — “Try Doing…”

Meaning: Attaching みる (to see) to the て-form creates the expression “try doing something” — doing an action to see what it’s like, or giving something a go for the first time.

Structure: [て-form] + みる

💡 Why みる? みる literally means “to see” or “to look.” The idea behind て+みる is “do it and see (what happens)” — just as you might “try something and see how it goes” in English. The verb みる here does not mean looking with your eyes; it expresses the testing or trying of an experience.

て-form+ みるMeaning
食べて食べてみるtry eating (it)
やってやってみるgive it a try / try doing it
話して話してみるtry speaking
着て着てみるtry wearing (it)
使って使ってみるtry using (it)

💡 みる conjugates normally as a Group 1 verb:

  • 食べてみます → polite present
  • 食べてみました → polite past (“I tried eating it”)
  • 食べてみてください → “Please try eating it”

Example sentences:

JapaneseEnglish
食べてみる。I’ll try eating it.
やってみます。I’ll give it a try.
この服を着てみてください。Please try on these clothes.
日本語で話してみました。I tried speaking in Japanese.
一度食べてみたい。I want to try eating it once.

Pattern 2: Verb (plain form) + まえに — “Before Doing…”

Meaning: まえに (前に) means “before.” When attached to a verb in plain form, it describes an action that takes place before another action.

Structure:

  • Verb (plain non-past form) + まえに
  • Noun + の + まえに

💡 Important: Unlike とき, the verb before まえに is always in the plain non-past form — even if the overall sentence is in the past tense. This is because まえに describes a relative relationship between two actions (X happens before Y), not an absolute time. The tense of the whole sentence is carried by the final verb.

StructureJapaneseEnglish
Verb + まえに寝るまえにbefore going to sleep
Verb + まえに食べるまえにbefore eating
Noun + のまえにレッスンのまえにbefore the lesson
Noun + のまえにしごとのまえにbefore work

Example sentences:

JapaneseEnglish
寝るまえに、かれはいつもキリンと話します。He always talks with his giraffe before going to bed.
レッスンのまえに、いつも復習をします。I always review before the lesson.
たべるまえに、手を洗います。I wash my hands before eating.
日本にいくまえに、日本語をべんきょうしました。I studied Japanese before going to Japan.

💡 まえに vs あとで (after): These two expressions work as a pair.

ExpressionStructureExample
まえに (before)Verb plain non-past + まえに食べるまえに手を洗う
あとで (after)Verb -form + あとで食べたあとで歯を磨く

Notice that あとで uses the past (た) form, while まえに uses the non-past form. With あとで, the first action must already be complete before the second begins — hence the past form.


Pattern 3: ます-stem + たい — “I Want to Do…”

Meaning: Attaching たい to the ます-stem expresses the speaker’s desire to perform an action — “I want to do…”

Structure: [ます-stem] + たい

💡 たい behaves exactly like an い-adjective. This means it conjugates using the same い-adjective rules you already know — not like a verb. The ます-stem before it does not change.

ます-stem+ たいMeaning
話し話したいwant to talk
食べ食べたいwant to eat
見たいwant to see / watch
行き行きたいwant to go
飲み飲みたいwant to drink
したいwant to do

Full Conjugation: 話したい (want to talk)

Since たい is an い-adjective, it follows the standard い-adjective conjugation pattern:

PositiveNegative
Polite present話したいです話したくないです
Casual present話したい話したくない
Polite past話したかったです話したくなかったです
Casual past話したかった話したくなかった

Example sentences:

JapaneseEnglish
すしを食べたいです。I want to eat sushi.
イタリアに行きたい。I want to go to Italy.
今日は何もしたくない。I don’t want to do anything today.
ずっと日本語を話したかった。I’ve always wanted to speak Japanese.
あの映画を見たくなかった。I didn’t want to watch that movie.

⚠️ Important limitation: たい expresses the speaker’s own desires and can also be used for close questions (“Do you want to…?”). It is not used to talk about a third person’s desires (e.g., “He wants to…”). For third-person desires, a different expression is used — this will be covered in a later lesson.

💡 たい + みる: These two patterns combine naturally:

  • 食べてみたい → I want to try eating it.
  • やってみたい → I want to give it a try.

Pattern 4: ~がほしい — “I Want (something)…”

Meaning: ほしい expresses desire for a noun (an object or thing) — “I want [something].”

Structure: [Noun] + が + ほしい

💡 The particle is が, not を. This is a key point. In English, “I want a car” uses a direct object (“a car”), so you might expect を. In Japanese, however, ほしい is an adjective (not a verb), and adjectives use が to mark the thing being described. Think of it as: “As for me, a car is desirable.”

JapaneseEnglish
くるまがほしい。I want a car.
ともだちがほしい。I want a friend.
もっと時間がほしい。I want more time.
あたらしいパソコンがほしい。I want a new laptop.

Full Conjugation: ほしい (want something)

ほしい is also an い-adjective and conjugates in the same way:

PositiveNegative
Polite presentほしいですほしくないです
Casual presentほしいほしくない
Polite pastほしかったですほしくなかったです
Casual pastほしかったほしくなかった

Example sentences:

JapaneseEnglish
くるまがほしいです。I want a car.
お金はほしくない。I don’t want money.
子どものとき、犬がほしかった。When I was a child, I wanted a dog.
そんなものはほしくなかった。I didn’t want something like that.

⚠️ Same limitation as たい: ほしい is used for the speaker’s own desires. It is not used to describe what a third person wants.


Summary Comparison: たい vs ほしい

ExpressionUsed forParticleExample
ます-stem + たいWanting to do an actionを (object of the verb)すし食べたい
Noun + がほしいWanting a thing (noun)くるまほしい

Both たい and ほしい are い-adjectives and follow the same conjugation rules:

  • Negative: 〜くない
  • Past positive: 〜かった
  • Past negative: 〜くなかった

Full Pattern Summary

PatternStructureMeaningExample
てみるて-form + みるtry doing…食べてみる
まえにVerb (plain non-past) + まえにbefore doing…寝るまえに
のまえにNoun + のまえにbefore (noun)…レッスンのまえに
たいます-stem + たいwant to do…話したい
ほしいNoun + がほしいwant (something)…くるまがほしい

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