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Connect ideas with the て-Form

Learn how to conjugate verbs, adjectives, and nouns into the te-form to link ideas and build complex sentences.

What is the て-Form

The te-form (て形) is arguably the most important conjugation in Japanese. It does not indicate tense by itself. Instead, it acts as a "connector," allowing you to link multiple actions or descriptions, ask for favors, or describe ongoing states.

In Japanese, you cannot simply place two verbs or adjectives next to each other to say "and." You must conjugate the first item into the te-form to "glue" it to the rest of the sentence.

Verbs in the て-Form

To conjugate a verb, you must first identify its group. All japanese verbs fall into one of these 3 groups: Ichidan, Godan, Irregular. Depending on the group, slightly different conjugation patterns are used.


Why are they called Ichidan/Godan?
Ichidan (一段, "one-row") and Godan (五段, "five-row") verbs are named based on how their stems conjugate across the hiragana table rows (a, i, u, e, o). Ichidan verbs keep a single row vowel (i or e) before ru, while Godan verbs change their stem vowel across all five rows during conjugation.
  • Ichidan Verbs (1-Row/Step): These verbs end in -iru or -eru (e.g., taberu - to eat). They are "one-step" because you simply drop the ru to conjugate, and the stem vowel does not change (i.e., tabe-ru, tabe-nai, tabe-masu).
  • Godan Verbs (5-Row/Step): These verbs end in a consonant + u sound (e.g., nomu - to drink). They are "five-step" because conjugation requires changing the final vowel through the five rows: noma-nai (a), nomi-masu (i), nomu (u), nome-ba (e), nomo-u (o).

In short, ichidan verbs are consistent in their stem vowel (one row), while godan verbs change vowels across all five rows.

1. Ru-Verbs (Ichidan)

Verbs ending in are the easiest to conjugate, just replace the with .

Base Formて-FormMeaning
To eat
To see/watch
To sleep

Examples

2. U-Verbs (Godan)

Verbs ending in "u" have diffrent rules depending on the final syllable of the dictionary form:

EndingChangeBase → て-form
(Buy)
(Read)
(Write)
(Swim)
(Speak)

Note: The verb is an exception. Its te-form is .


Examples

3. Irregular Verbs

There are only three main irregular verbs:

Base Formて-FormMeaning
To do
To come
To go

Examples

Notice the use of at the end. Adding this particle is the standard way to form Yes/No questions. See Forming Questions in Japanese for a full guide on asking questions.

Adjectives in the て-Form

Adjectives use the te-form to link multiple descriptions together. There are only two patterns to remember: I-Adjectives, Na-Adjectives. For a deeper dive into adjectives and their conjugations, see Introduction to Japanese Adjectives.

I-Adjectives

To conjugate I-Adjectives, replace the final with .

Adjectiveて-FormMeaning
Cheap and...
Fast and...
Delicious and...
Heavy and...

Note: The adjective is irregular. Its te-form is .


Examples

Na-Adjectives

Na-adjectives do not conjugate themselves but simply add (which is the te-form of the verb ) to the end of the word.

Adjectiveて-FormMeaning
Quiet and...
Beautiful and...
Famous and...
Kind and...

Examples

Nouns in the て-Form

Nouns use the te-form to link identity-based statements together.

In English, you can use the word "and" to connect almost anything. In Japanese, the way you say "and" changes depending on what you are connecting. If you are saying a person or thing is multiple things at once, you use the te-form of the noun.

Like Na-adjectives, nouns do not conjugate themselves but simply add (which is the te-form of the verb ) to link with another phrase.

Nounて-FormMeaning
Being Japanese and...
Being a student and...
Being a doctor and...
Being rain and...

1. Linking Identities (The "And" Function)

You use the noun te-form when you want to say "[Subject] is A and [Subject] is B." If you just used the particle , you would be listing two separate objects (like "bread and milk"). But to say "He is a student and a friend," you must use the te-form.

In this sentence:

  • (Student)
  • (The te-form connector)
  • (Friend)

You can go even further and list more then two attributes by chaining them together:

Without the te-form, you would have to stop and start the sentence three times: "My sister is Japanese. She is a teacher. She is 25."

2. Providing Context or Reasons

The te-form of a noun can also indicate a cause or a reason. It sets the stage for the second half of the sentence, essentially saying "Because it is [Noun], [Result]."

Here, "rainy" is the noun in te-form. It connects the state of the weather to the resulting action.

Study Tips

The te-form is a fundamental grammatical concept, and understanding why and when it is used is tremendously helpful.

That being said, try not to spend too much time memorizing every specific rule and exception. Focusing on the irregular verb forms is usually enough to get you started; for the others, simply being able to recognize them in context is sufficient.

Once you can do that, you will naturally develop an intuitive understanding of which form to use through A Practical Guide to Language Immersion.

Doing Favors with ~てあげる, ~てくれる, and ~てもらう

The te-form combines with giving and receiving verbs to express doing favors for others or having others do favors for you. These constructions are essential for talking about helpful actions. For a complete guide on these expressions and the cultural nuances of giving and receiving, see Giving and Receiving Verbs Ageru, Kureru, Morau.

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