Spell checking in two languages at the same time

We usually take notes in our native language, but English is a universal language used by everyone and functions as the main global lingua franca for business, travel, and international communication. When I write, I often intersperse English words, phrases, and text within my native language text. Now, a "problem" arises... that red jagged line under the words (which are misspelled) hinders readability...

Would it be possible to add a second language as a spell-checking option?