毎日（まいにち）サッカーの練習（れんしゅう）に行（い）けば、プロのサッカー選手（せんしゅ）になれる。

今週（こんしゅう）の金曜日（きんようび）までにできなければ、来週末（らいしゅうまつ）に終（お）わらせなくてはいけない。

ヘルメットを被（かぶ）らなければ、バイクに乗（の）れない。

展覧会（てんらんかい）に行（い）けば、色々（いろいろ）なことを学（まな）べる。

LEDを使（つか）えば、電気代（でんきだい）が大分（だいぶ）減（へ）ります。

毎日（まいにち）運動（うんどう）をして、プロテインを飲（の）めば、筋肉（きんにく）が増（ふ）えると思（おも）う。

明日（あした）雨（あめ）が降（ふ）れば、映画（えいが）を見（み）に行（い）くつもり。

天気（てんき）予報（よほう）を見（み）れば、明日（あした）の天気（てんき）が分（わ）かるだろう。

途中（とちゅう）で迷子（まいご）になれば困（こま）るから、電話（でんわ）してね。

そのコーヒーを好（す）きでなければ、この飲（の）み物（もの）も絶対（ぜったい）好（す）きじゃないでしょう。

この本（ほん）を読（よ）めば、日本（にほん）の文化（ぶんか）が分（わ）かる。

丁寧（ていねい）に話（はな）せば、面接（めんせつ）がうまく行（い）くと思（おも）うよ。

<div class='writeup-body'>There are several different ways to express 'if' in Japanese. One of these is through using the conjunction particle ば. ば presents hypothetical situations (possibilities), and pairs with verbs using an う to え sound-change conjugation method on the terminal (last) kana. Let's examine this with a few verbs first.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>仕事（しごと）を辞（や）めれば自由（じゆう）時間（じかん）が増（ふ）えるけど、お金（かね）が無（な）くなる。</div><div class='writeup-example--english'>If I quit work, I will have more free time, but I will have no money.</div></li><li class='writeup-example'><div class='writeup-example--japanese'> 雨（あめ）が止（や）めば、今日（きょう）も釣（つ）りに行（い）くつもりです。</div><div class='writeup-example--english'>If it stops raining, I intend to go fishing today also.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>そこの信号（しんごう）で右（みぎ）に曲（ま）がれば病院（びょういん）に着（つ）きます。</div><div class='writeup-example--english'>If you turn right at the light just there, you will get to the hospital.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>店（みせ）に電話（でんわ）をすれば、すぐに予約（よやく）ができるよ。</div><div class='writeup-example--english'>If you call the store, you will be able to make a reservation immediately.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>あいつがくればパーティーが楽（たの）しくなると思（おも）う。</div><div class='writeup-example--english'>If he comes to the party, I think it will be more fun.</div></li></ul>As we can see with these verbs, the final kana will change to an え sound, from its original う (る to れ, う to え, く to け, す to せ, etc.) before adding ば. It is important to practice these, to not get them mixed up with verbs that use れる, and られる. Unlike with these verbs, the base form of する and くる will not change when using ば. To conjugate い-Adjectives with ば, the い will be replaced with けれ, one of the standard い-Adjective conjugation forms. After this, just add ば.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>頭（あたま）が痛（いた）ければ、薬（くすり）を飲（の）んで寝（ね）た方（ほう）がいい。</div><div class='writeup-example--english'>If your head hurts, it would be better if you take some medicine and then sleep.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>ラーメン屋（や）のチャーハンが不味（まず）ければ、そこのラーメンも不味（まず）いだろう。</div><div class='writeup-example--english'>If a ramen shop's fried rice tastes bad, then the ramen probably tastes bad too, right?</div></li></ul>For な-Adjectives, and nouns, なら (another standard conjugation form of these words) will be added, before attaching ば.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>刺身（さしみ）が嫌（きら）いならば 、寿司（すし）も嫌（きら）いでしょう。</div><div class='writeup-example--english'>If you do not like sashimi, then you probably don't like sushi either, right?</div></li><li class='writeup-example'><div class='writeup-example--japanese'>バイクならば、バイク専用（せんよう）の駐輪場（ちゅうりんじょう）に止（と）めてください。</div><div class='writeup-example--english'>If it's a motorcycle, please park it in the designated bike parking lot.</div></li></ul> In the negative form (using ない), both the auxiliary verb ない, and the い-Adjective ない will conjugate in the same way. Simply replace い with けれ, and then add ば.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>私（わたし）が作（つく）ったクッキーを食（た）べたくなければ、捨（す）ててもいいよ。</div><div class='writeup-example--english'>If you don't want to eat the cookie that I made, you can throw it away.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>カレーが辛（から）くなければ、いっぱい食（た）べれる。</div><div class='writeup-example--english'>If the curry isn't spicy, I can eat a lot of it.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>トラックの運転手（うんてんしゅ）でなければ、この仕事（しごと）の辛（つら）さが分（わ）からない。</div><div class='writeup-example--english'>If you aren't a truck driver, then you wouldn't understand the hardships of this job.</div></li></ul><div class='writeup-funfact'><div class='funfact-header'>Fun Fact</div>The なら in ならば is often used by itself to mean 'if', and is an abbreviation of the classical auxiliary verb なり 'to be'. In its hypothesis form, なり will become ならば. However, なり is very irregularly used by itself in modern Japanese, with なら, and ならば being far more common.</div><div class='writeup-caution'><div class='caution-header'>Caution</div>So that you do not mix up the conjugation rules for ば, and passive verbs, remember that the last kana of the verb will change to an あ sound, before adding れる with passive verbs. However, this change is to an え sound with ば.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>運動（うんどう）をすれば痩（や）せるよ。</div><div class='writeup-example--english'>If you exercise, you will lose weight.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>夜（よる）遅（おそ）くに電話（でんわ）をされると迷惑（めいわく）です。</div><div class='writeup-example--english'>It is very inconsiderate of you to call this late at night.</div></li></ul></div></div>

Grammar Info

ば

If… then, (Conditional)