Prefix the Problem
Happy → ?
UNhappy
Agree → ?
Disagree
Fair → ?
Unfair
He is the man ___ helped me.
He is the man WHO helped me.
It’s the beach ___ we got engaged.
It’s the beach WHERE we got engaged.
Legal → ?
Illegal
Connect → ?
Incorrect
Honest → ?
Dishonest
She’s the doctor ___ treats children.
She’s the doctor WHO treats children.
I read a book ___ changed my life.
I read a book WHICH changed my life.
Regular → ?
Irregular
Appear → ?
Disappear
Complete → ?
Incomplete
They saw the boy ___ dog was barking.
They saw the boy WHOSE dog was barking.
I need the file ___ is saved on the desktop.
I need the file WHICH is saved on the desktop.
Patient → ?
Impatient
Respect → ?
Disrespect
Satisfied → ?
Dissatisfied
He’s the teacher ___ class is very popular.
He’s the teacher WHOSE class is very popular.
That’s the house ___ I grew up.
That’s the house WHERE I grew up.
Responsible → ?
Irresponsible
Trust → ?
Distrust
Logical → ?
Illogical
This is the artist _____ I admired when I was a kid.
This is the artist WHOM I admired when I was a kid.
This is the car ___ engine failed.
This is the car WHICH engine failed.