I've been learning to sing a song from the film My Neighbour Totoro / Tonari no Totoro. The lyrics go like this: 歩こう、歩こう 私は元気 歩くの大好き どんどんゆこう* The translation I saw for 歩こう is "let's walk". I'm interested in how 歩く becomes 歩こう. Is it possible to do this with other verbs? Like, can I turn 食べる into "let's eat" in the same way? What is the rule? Sorry if this question is really basic. Thanks for your help. *I'm not sure about this last line actually. Is どんどん supposed by katakana? Is ゆこう the correct word?