opening phrase + if/whether + subject + verbFor yes/no meaning, use if or whether and keep normal statement order in the embedded part.
Embedded questions use an opening phrase plus a question inside it. After if, whether, or a wh-word, keep statement word order.
opening phrase + if/whether + subject + verbFor yes/no meaning, use if or whether and keep normal statement order in the embedded part.
opening phrase + wh-word + subject + verbAfter the wh-word, the embedded part stays in statement order, not question order.
opening phrase + wh-word/if/whether + subject + beWith be, use the be-form directly inside the embedded clause. Do not add do or does.
I wonder if Tom is home.
After if, keep statement order: Tom is, not is Tom.
Use embedded questions when you want to ask for information in a softer way: Could you tell me where the station is?
Use I wonder if or whether when you are uncertain: I wonder whether Lisa is busy.
Use embedded questions after I don't know, Do you know, or Can you tell me to talk about missing information.
Only the main direct question uses question order. Inside an embedded question, English uses statement order.
After I wonder, use if or whether and change the rest to statement order: I wonder if he is ready.
IF_WHETHER_STATEMENT_ORDERw5After phrases like I wonder, Do you know, or Can you tell me, use if or whether and keep normal subject + verb order. Do not invert the subject and auxiliary inside the embedded part.
WH_WORD_STATEMENT_ORDERw5After who, what, where, when, why, or how, the embedded part stays in normal statement order. The subject comes before the verb or auxiliary.
NO_DO_DOES_WITH_BEw4With be, the embedded clause uses the form of be directly: where she is, if they are ready. Do not add do or does before be.
USE_OPENING_PHRASESw3Use openings like I wonder, Could you tell me, Do you know, or I'd like to know before the question part to sound less direct.
PICK_COMMON_OPENERSw2Phrases like I wonder, Do you know, Can you tell me, and I'd like to know often introduce embedded questions and signal a less direct style.