I want to be sure I understand correctly.

Meaning

I need to verify my understanding.

Examples

• John: 'We need to submit the report by Monday.'
• Alice: '<b>I want to be sure I understand correctly.</b> So, Monday is the final deadline?'
• John: '<b>I want to be sure I understand correctly.</b> So, we need more money to complete it?'
• Alice: 'The project requires additional funding.'