Your help was invaluable.

Meaning

Expressing that someone's assistance was extremely important.

Examples

• John: 'Glad I could assist.'<br>
• Alice: '<b>Your help was invaluable</b>; I wouldn't have finished on time without you.'
• John: 'It was a pleasure, but seriously, <b>your help was invaluable</b> to me too.'
• Alice: 'I couldn't have managed without you, John.'<br>