てよかった means glad that. It is a JLPT N4 Japanese grammar pattern used to express this idea in natural Japanese.
This post explains what てよかった means and when you should use it.
What does てよかった mean?
Use てよかった when you want to express glad that in a Japanese sentence.
Natural translations include:
- glad that
- to express “glad that” naturally
- the closest natural English meaning in context
How to form てよかった
Examples of the pattern:
- Verb て-form + よかった
- てよかった
- related form: ばよかった
When is てよかった used?
Use てよかった in situations like:
- reading or writing JLPT N4-level sentences
- making a sentence more precise than a basic N5 pattern
- recognizing natural grammar in conversation or short passages
Tone and register:
- usually neutral unless the pattern itself is casual, humble, honorific, or written
- common in JLPT N4 grammar study and everyday examples
てよかった example sentences
日本語を勉強してよかったです。
I am glad I studied Japanese.
positive emotion
早く来てよかったです。
I am glad I came early.
past action
先生に聞いてよかったです。
I am glad I asked the teacher.
benefit
この本を買ってよかったです。
I am glad I bought this book.
positive outcome
あきらめなくてよかったです。
I am glad I did not give up.
negative て-form
Nuance of てよかった
The key nuance is glad that in context, not a word-for-word English replacement.
This matters because てよかった often changes the relationship between actions, people, time, or evidence in the sentence. Read the whole sentence before choosing the English translation.
てよかった vs ばよかった
Both patterns can appear in related sentences, but they do different jobs.
てよかった
focuses on glad that
the target JLPT N4 pattern in this lesson
日本語を勉強してよかったです。
I am glad I studied Japanese.
ばよかった
may change the tone, evidence, direction, or relationship in the sentence
useful for comparison because learners often confuse nearby forms
Related pattern with ばよかった
compare what changes in evidence, timing, direction, or politeness.
Common mistakes with てよかった
早く来るてよかったです
Using the wrong verb, adjective, or noun form
早く来てよかったです
日本語を勉強ばよかったです
Confusing てよかった with ばよかった because the English can sound similar
日本語を勉強してよかったです
Copying a dictionary gloss without checking the sentence context
Read the whole sentence before choosing the English translation
Is てよかった on the JLPT?
てよかった is covered under JLPT N4 grammar.
- Recognize it in reading
- Understand its nuance in context
- Use it in simple original sentences
For test preparation, study the grammar point in full sentences. JLPT questions often test whether you understand the surrounding context, not just the dictionary meaning.
Practice questions for てよかった
Write one short sentence using the basic structure.
production
Replace the subject, time, or object and keep the same grammar point.
variation
Compare your sentence with the related pattern above.
comparison
Learning path for てよかった
Use てよかった as part of your JLPT N4 benefit, request, and emotion grammar with て-forms toolkit. Start with the て-form action, then identify who benefits, who feels grateful, or who receives the request. These patterns are easiest when you draw the direction of favor between speaker, listener, and another person.
For practice, write one sentence that uses てよかった in its most literal meaning, one sentence that changes the subject or time expression, and one sentence that contrasts it with one of the related patterns below.
Related grammar to review next
- てもらう — have someone do for you.
- てやる — do for someone below you.
- てほしい — want someone to do.
- ていただけませんか — contrasts with this pattern from the obligation, request, and command grammar group.
Learn てよかった with Hane
If you want to review てよかった together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.
Browse more lessons here:
FAQ about てよかった
What does てよかった (te yokatta) mean in Japanese?
てよかった (te yokatta) means “glad that”. It is JLPT N4 grammar. Use てよかった when you want to express glad that in a Japanese sentence.
How do you form てよかった (te yokatta)?
Verb (て-form) + よかった
What is the difference between てよかった and ばよかった?
てよかった: focuses on glad that. ばよかった: may change the tone, evidence, direction, or relationship in the sentence.
What is an example sentence with てよかった (te yokatta)?
日本語を勉強してよかったです。 — I am glad I studied Japanese.