He often helped his Mom.
General question
Did he often help his Mom?
He often helped his Mom.
Whom... ?
Whom did he often help?
The bear is green.
General question
Is the bear green?
The bear is green.
What colour ...?
What colour is the bear?
The crocodile has got the sun in his mouth.
General question
Has the crocodile got the sun in his mouth?
The crocodile has got the sun in his mouth.
What... ?
What has the crocodile got in his mouth?
