Some other examples from Raymund Murphy Book Unit 52 1. After Let’s … (= Let us) the question tag is 'shall we': Let’s go for a walk, shall we? 2. After Don’t … , the question tag is 'will you': Don’t be late, will you? 3. After I’m … , the negative question tag is 'aren’t I'? (= am I not?): ‘I’m right, aren’t I?’