A футболку is a t-shirt?
Yes, in the Accusative case. The dictionary form (Nominative) is футболка.
Футболка. У ending is because accusative.
Так
If футболку is a t-shirt what is a football then?
Just Футбол
i got it wrong for saying "shirt" instead of "t shirt" when i always thought they're the same thing??
The official definition of shirt is 'a garment for the upper body made of cotton or a similar fabric, with a collar and sleeves, and with buttons down the front.' Idk where you are from, but in mu language (Dutch) we do use 'shirt' for 't-shirt'.