"I cook in December."
Translation:Jag lagar mat i december.
"I december jag lagar mat" doesn't make sense. You can use "I december lagar jag mat". This is because Swedish is a V2 language http://en.wikipedia.org/wiki/V2_word_order#Continental_Scandinavian_languages:_Swedish.2C_Danish.2C_Norwegian.2C_Faroese
So if I understand correctly, SVO is only valid at the beginning of the sentence. If you modify the action before the subject, you must switch to v2 (Verb-subject-object.) And it isn't necessarily a question, correct? (I thought v2 signified questions.)
Thanks for the pointer. Interesting article; my head hasn't swum like that since... that one book in high school, that nobody should probably be reading. LOL.
Note that in a sentence with only subject, verb and object we automatically get SVO and V2, "Jag lagar mat".
As you say, as soon as we put something else in front, we have to change the order, "Igår lagade jag mat".
A question is different though. I can't answer that but I know that it breaks V2, "Lagar jag mat?".