emotions
body parts
to be
prepositions
100
I am
100
100
I (am,is,are)
100
200
I am 
200
200
You (am,is,are)
200
It is ___ the desk. 
300
I am
300
300
He (am,is,are)
300
It is ___ the box. 
400
I am
400
400
They (am,is,are)
She (am,is,are)
400
It is ___ the box.