How to say i'll in Japanese

ましょうmashou・ましょmasho・まひょmahyo: expression:
I'll - used to express volition; ましょ is col.; まひょ is ksb - polite language ➜ ます
let's - used to make an invitation, request, etc.
probably - used to express a conjecture ➜ でしょう

Example Sentences

きみkimi にni ちょっとしたchottoshita ものmono をwo もってきたmottekita よyo。: I brought you a little something.
私watashi はha 眠らnemura なければなりませんnakerebanarimasen。: I have to sleep.
すぐにsuguni 戻りますmodorimasu。: I'll return immediately.
知らないshiranai。: I don't know.
何とnanito 言ったらittara 良いyoi かka 分かりませんwakarimasen。: I don't know what I should say.

© Based on JMdict, KANJIDIC2, and JMnedict, property of the Electronic Dictionary Research and Development Group, used in conformance with the Group's licence. Example sentences from the Tatoeba project (CC BY 2.0). Kanji stroke order data from the KanjiVG project by Ulrich Apel (CC BY-SA 3.0). See comprehensive list of data sources for more info.