Horses are my favourite animals.
Are horses my favourite animals?
Whose favourite animals are horses?
This is my brother's sweater.
Is this my brother's sweater?
Whose sweater is this?
There are two kilograms of meat in the fridge.
Are there two kilograms of meat in the fridge?
Where are two kilograms of meat?
I like to ski on Sunday.
Do I like to ski on Sunday?
When do I like to ski?