YES/NO QS
Jack to me: "Is it easy to use this app?"
Jack asked me if it was easy to use this app.
Mother to me : "Where is the broken toy?
My mother asked me where the broken toy was.
Grandpa to grandma :"When will they come?"
Grandpa asked grandma when they would come.
Present simple changes into
Past Simple
Manufacturer to workers : "Are there enough dummies to test the car?"
Manufacturer asked workers if there were enough dummies to test the car.
Customer to salesman : "How do the new robots work?"
Customer asked the salesman how the new robots worked.
Travel agent to us: " Do you have a passport? "
Travel agent asked us if we had a passport.
Will changes into
would
Mary to her mother :"Do scientists observe animals in their natural habitats?"
Mary asked her mother if scientists observed animals in their natural habitats.
My friend to me : "How long does it take to fix the old metal watch?"
My friend asked me how long it took to fix the old metal watch.
Jane asked Lisa who her favorite author was.
Can changes into
could
Children to teacher : "Can we dip this toy into water?"
Children asked teacher if they could dip this toy into water.
Student to scientist : "Why should we save our resources?"
Student asked scientist why we should save our resources.
Me to old waman : " Can I help you?"
I asked old woman if I could help her.
These changes into
Those
Robert to Julia :"Did you see the giant black bug on my table?
Robert asked Julia if she saw the giant black bug on his bed.
Science teacher to everybody in class: "What percent of fresh water can you drink?"
Science teacher asked everybody in class what percent of fresh water we could drink.
Frank to me : " How much pocket money does Mandy get? "
Frank asked me how much pocket money Mandy got.
Yesterday changes into
The day before, the previous day