Offering

There are a number of formulas used when offering help in English. Here are some of the most common:

• May I help you?
• Can I help you?
• Are you looking for something?
• Would you like some help?
• Do you need some help?
• What can I do for you today?

Construction

Formula	Verb Form
May I help you?	Use 'May I' or 'Can I' the base form of the verb in a statement.
Are you looking for something?	Use 'Are you looking for' something OR anything in particular OR specific object
Would you like some help?	Use 'Would you like' some help OR some advice OR a recommendation
Do you need some help?	Use 'Do you need' some help OR some advice OR a recommendation
What can I do for you today?	Use 'What can I do for' you, her, him, etc. today OR this morning, this afternoon, this evening