Ask and ask for

Ask forIf you ask for something, it means that you want someone to give you something:

I always ask for extra tomato sauce on my pizza.

They asked their boss for more money, but he refused.

Warning: Don’t confuse ask for and demand. Demand means ‘ask for something forcefully’, in a way that shows we are not expecting a refusal:

We are writing to ask for your help in finding suitable accommodation in New Haven.

Not: We are writing to demand …