Let me know if you can help.

Meaning

Asking for help, but leaving the decision to the other person.

Examples

• John: '<b>Let me know if you can help</b> with the moving.'<br>
• Alice: 'I will.'
• John: 'I'll let you know later.'
• Alice: '<b>Let me know if you can help</b> me set up the tent.'<br>