～にしろ～にしろ・～にせよ・にせよ

About

Both ～にしろ and ～にせよ can be used either once in a sentence, or they can be doubled up to express "Whether X, or whether Y... ". If only one instance is used, ～にしろ・にせよ functions more like "Even if X...".

～にしろ and ～にせよ can attach directly to verbs and い-adjectives. They can attach to nouns/な-adjectives with or without である.

にせよ is slightly more formal than にしろ.

E.g. 進学しんがくするにせよ就職しゅうしょくするにせよ、これからも日本語にほんごの勉強べんきょうは続つづけます！ "Whether I continue with school, or start working, I am going to continue my Japanese studies!"

E.g. 時給じきゅうが低ひくいにしろ高たかいにしろ、もらっていることには変かわりない。 "Whether the hourly wage is high or low, you're still getting paid."

E.g. 一人ひとり暮ぐらしをするにしろしないにしろ、味噌汁みそしるくらいは作つくれた方ほうが良いいですよ。 "Whether you live on your own or not, you ought to be able to make something (simple) like miso soup."

Summary

• 

  Both ～にしろ and ～にせよ can be used either once in a sentence, or they can be doubled up to express "Whether X, or whether Y... "

• 

  ～にしろ and ～にせよ can attach directly to verbs and い-adjectives

• 

  ～にしろ and ～にせよ can attach to nouns/な-adjectives with or without である

• 

  にせよ is slightly more formal than にしろ