"What size is this shirt?"
Translation:Minkäkokoinen tämä paita on?
"Minkäkokoinen on tämä paita" isn't really correct or it sounds odd, even though you'd be understood.
--I like book language. I like books.-- scrap that. I should get used to spoken language too. It is just hard if you don't live in Finland. For now, book language is all I have .....