友人にスキンケアのコツ聞かれたときの返答です。
* We should wash our face not only at night, but also in the morning.
* We should wash our face in the morning as well as at night.
↑これは正しいですか？
日常会話の中でより自然な表現を知りたいです。
You should wash your face in the morning and at night.
You should wash your face twice a day, morning and night.
Akariさんの英文は正しいですよ。We を You にするともっと自然な感じになって良いです。
ーYou should wash your face not only at night, but also in the morning.
ーYou should wash your face in the morning as well as at night.
私なら次のように言います。
ーYou should wash your face in the morning and at night.
「朝と夜、洗顔しなきゃ」
ーYou should wash your face twice a day, morning and night.
「朝晩、1日２回洗顔しなきゃ」
ご参考まで！
It's important to wash our face both in the morning and at night.
ご質問ありがとうございます。
Akariさんの２つ英文の中に、１つ目「We should [wash](https://eikaiwa.dmm.com/uknow/questions/53519/) our face not only at night, but also in the morning.」の方が良いと思います。
また、別のネイティブスピーカーの言い方を知りたいなら、「It's important to wash our face both in the morning and at night.」という風に言えます。
ご参考になれば幸いです。
カナダ 
アメリカ合衆国 
