Also win+space to switch from English to Japanese and back! And inside that, shift+caps to switch between kana and kanji, and romaji!

(I’m on Mint, but I changed the shortcuts to be Windows default because that’s what I’m used to. Still works great, sometimes I hamfist the wrong kanji in the sentence because I’m just not looking too closely, but I’ve seen native English speakers abuse the shit out of “your” and “there”.)