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+# Possibility
+
+## でも
+
+Used to list one or more possible options.
+
+> [!info] Example
+> ジュース==でも==お茶==でも==飲もうか。
+> Shall we drink something like a juice or tea?
+
+## かもしれない
+
+Express a possibility, like "perhaps".
+By order of politeness: かもしれません > かもしれない > かも.
+
+> [!info] Example
+> 今日も来る==かもしれない==。
+> He might come today too.
+
+## もしかしたら
+
+Means "perhaps", "maybe". Usually completed by [[#かもしれない]].
+Can be used as もしかしたら, もしかすると and もしかして. 
+
+> [!info] Example
+> ==もしかして=={今日|きょう}も{郵便局員|ゆうびんきょくいん}が来ません==かもしれない==。
+> Perhaps the postman will not come today either.
+
+## ことができる
+
+Means "can", "able to".
+It has the same meaning as the potential form (see Conjugation [[Basics]]).
+食べる => 食べられる = 食べることができる.
+
+> [!info] Example
+> {英語|えいご}を{話|はな}す==ことが出来ない==。
+> I cannot speak English.
+
+## かどうか
+
+Means "whether or not". 
+
+> [!info] Example
+> 行きたい==かどうか=={分|わ}からない。
+> I'm not sure if I want to go or not.
+
+## ないことはない
+
+<div class="usage">
+<div class="left">
+	<p><span class="box">V (ない)</span></p>
+	<p><span class="box">い-Adj <stroke>い</stroke> くない</span></p>
+	<p><span class="box">な-Adj + ではない</span></p>
+	<p><span class="box">N + ではない</span></p>
+</div>
+	<p class="right">+ ことはない</p>
+</div>
+
+Means "not impossible to", "it is not that". Used with negative forms.
+
+> [!info] Example
+> 本を{読|よ}ま==ないことはない==ですが、{最近|さいきん}は{暇|ひま}がない。
+> It's not that I don't read books, it's just that I don't have free time these days.
+
+## か
+
+Means "or". Can be used when there is uncertainty between two or more choices.
+See [[Question#か]].
+
+## 又は
+
+{又|また}は can be used for two things:
+* choosing between two options ("or")
+* listing two options ("both")
+
+> [!info] Example
+> 日本語==又は==英語でしゃべれます。
+> I can speak both Japanese and English.
+
+## それとも
+
+This is used to give a choice between a limited set of two options. It is casual.
+
+> [!info] Example
+> 何が食べたい。ラーメン==それとも==カレーか。
+> What do you want to eat? Ramen or curry?
+
+
+
+
+# TODO
+
+## もしも～たら・なら・たなら
+
+🛠🛠🛠🛠🛠
+もしも〜たら
+if; in the case; supposing ~
+
+https://jlptsensei.com/learn-japanese-grammar/%e3%82%82%e3%81%97%e3%82%82%e3%80%9c%e3%81%9f%e3%82%89-moshimo-tara-meaning/
+https://bunpro.jp/grammar_points/%E3%82%82%E3%81%97%E3%82%82%EF%BD%9E%E3%81%AA%E3%82%89%E3%83%BB%E3%82%82%E3%81%97%E3%82%82%EF%BD%9E%E3%81%A7%E3%82%82
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