Autocorrections when texting in other languages

Hi all, I write a lot of text messages and I enjoy using the autocorrection feature since it tends to make typing a bit faster. The language of my phone is set to Danish, however, I regularly write messages in English and Spanish too. Or well, I try, but since my iPhone insists on trying to change all my Spanish words into completely different Danish words, it really isn't easy to write anything. I wonder if there is some way of dealing with this other than changing the phone language which I think is a bit drastic just to write a text. My Windows computer recognizes the language after a few words, but the iPhone doesn't seem to do the same. Does anybody know of a work-around for this?