Compound and Complex Sentences

A Japanese sentence can run for a paragraph's worth of clauses and still mark its tense once. That is the single most important thing to understand about how Japanese builds long sentences, and it is the thing English never prepares you for: in "I got up, washed my face, and left," English tenses every verb ("got," "washed," "left"). Japanese does not. It leaves the medial verbs in a tense-neutral connecting form and lets the final predicate set the tense — and the politeness — for the whole chain. Learn to read that final predicate as the sentence's control panel and long Japanese sentences stop being a wall of text.

Two ways to chain clauses

Compound (coordinate) sentences link clauses of equal weight — "and then… and then." Complex sentences nest one clause inside another as its reason, condition, or modifier. Compounding is the topic of this page; complexity is handled by connectors and is covered on the subordinate clauses page. Japanese has two tools for compounding, one spoken and one written.

The て-form: everyday chaining

The workhorse of spoken Japanese is the て-form. To say "do A and then B," you put A into its て-form and let B carry the sentence. Stack as many as you like.

Count the verbs in the first sentence: 起きて, 洗って, 出かけた — three actions, but only the last one, 出かけた, is in the past tense. 起きて and 洗って are in the て-form, which carries no tense at all. Yet the whole sentence is unmistakably past, because 出かけた at the end is past and its scope reaches backward over the entire chain.

The 連用形 / 連用中止法: written chaining

In writing and formal speech, the て-form is often replaced by the bare 連用形（れんようけい） — the ます-stem used on its own to connect clauses. This device is called 連用中止法（れんようちゅうしほう）, "the conjunctive-stop." 読む becomes 読み, 聞く becomes 聞き, and the clause simply pauses there before the next one begins. It sounds crisp and literary; in casual conversation you would use the て-form instead.

読み and 降り carry no tense; the past tense sits once, on 聞いた and 晴れた. For the full range of what the stem does, see the 連用形 stem page. Whichever tool you choose, the deep behaviour is identical — and that behaviour is the heart of this page.

The final-predicate scope: tense is marked once, at the end

Here is the load-bearing insight. In a Japanese clause-chain, only the last predicate is finite — only it carries tense. Every medial clause hands off to a tense-neutral form (て-form or 連用形) and inherits its tense from the final predicate. So a five-clause sentence can show the past tense exactly once and still be entirely in the past.

Four actions, and the only tensed verb is the final 飲んだ. Remove it and swap in a non-past ending, and the tense of all four actions flips at once:

Nothing changed except the last word — 飲んだ → 飲む — yet the whole sentence moved from "yesterday" to "every morning." The medial て-forms 歩いて, 乗って, 着いて were never past or present in themselves; they were waiting for the final predicate to tell them. This is what "final-predicate scope" means: the tense of the last verb reaches back over the entire chain.

There is a nuance worth flagging honestly: the て-form encodes sequence and dependence, not simultaneity, so 歩いて…着いて really does mean the walking came before the arriving. What it does not do is independently carry tense. The relative order comes from the chain; the absolute time comes from the end.

Politeness lives at the end too

Exactly the same logic governs politeness. In a です／ます sentence, the polite ending appears only on the final predicate. The medial clauses stay in the plain connecting form. You do not politeness-mark every clause — you politeness-mark the sentence, once, at its tail.

食べて and 磨いて are not 食べまして and 磨きまして; 行って is not 行きまして. The politeness is concentrated on 寝ます and 会いました. (You can say 行きまして — the ます-stem plus て — but it is stiff, hyper-formal register reserved for very ceremonious speech, and it is a classic over-correction when an English speaker tries to make every clause "match.")

Even with a subordinator like ので carrying the join, the pattern holds: the reason clause stays plain (疲れた), and the tense/politeness sit on the final 寝た. The subordinate clauses page develops this plain-inside rule.

Complex sentences: nesting, not just chaining

A complex sentence embeds one clause inside another as its reason, time, or condition — the machinery of connectors covered elsewhere. What carries over from this page is that the embedded clause obeys the same economy: it does not repeat the tense or politeness of the main clause.

The reason clause ends in 〜ので, the manner clause in 〜ないで, and the single finite predicate 出た at the very end fixes the whole thing in the past. Two embedded clauses, one tense marker.

Common mistakes

Mistake 1 — Tensing every clause, English-style. English says "I got up, washed, and left" with three past verbs. Learners copy that as a run of finite past clauses instead of a て-chain.

Mistake 2 — Reaching for と to mean "and" between clauses. English "and" joins clauses, so learners use と — but と between clauses means "when/whenever," a conditional, not "and."

Mistake 3 — Politeness on every clause. Learners make each medial verb です／ます to "match" the polite ending.

Mistake 4 — Using 連用中止法 in casual speech. The bare stem (読み、聞き) is correct but sounds bookish; dropped into a chat it feels oddly formal.

Key takeaways

• Japanese chains clauses with the て-form (spoken) or the 連用形 / 連用中止法 (written); both are tense-neutral connectors.
• Tense is marked once, on the final predicate, and its scope reaches back over the whole chain — a five-clause sentence can show the past exactly once (歩いて、乗って、着いて、飲んだ).
• Change only the final verb and the tense of every clause flips with it — so read the last predicate first to fix the time frame.
• Politeness also lives at the end: medial clauses stay plain; only the final predicate takes です／ます.
• と does not mean "and" between clauses — it means "when/whenever." For "and," use the て-form.