• Embedded Yes/No Questions

• 
• Remember! Yes/no questions begin with the auxiliary verb do or the verb be. Start an embedded yes/no question with if.

  
  

  Remove the auxiliary verb do in embedded questions.

  - Regular question: Do you support Greenpeace?

  - Embedded question: Can you tell me if you support Greenpeace?

  
  

  When a question contains the verb be, change the order of the verb be and the subject in the embedded question.

  - Regular question: Is Peter going to the protest?

  - Embedded question: Do you know if Peter is going to the protest?

• Did Kimberly go to the reforestation campaign on Sunday?	Do you know if Kimberly went to the reforestation campaign on Sunday?
  Is the jaguar an endangered species?	Do you know if the jaguar is an endangered species?

• Remember! A question with an embedded question is also called an indirect question. Indirect questions are more polite and formal than direct questions. 

  Direct question: Do you support green causes? > Indirect question: Can you tell me if you support green causes?

 

Source : Alison