I couldn't have done it without you.

Meaning

Expressing dependence on someone's help.

Examples

• John: 'Thanks for your assistance.'
• Alice: '<b>I couldn't have done it without you.</b> You were a lifesaver.'
• John: '<b>I couldn't have done it without you.</b> The project would have been delayed otherwise.'
• Alice: 'Thanks for all your hard work.'