front and ...?
front and back.
old and ...?
old and young
cheap and ...?
cheap and expensive
up and ...?
up and down.
young and ...?
young and old
fast and ...?
fast and slow.
dirty and ...?
dirty and clean.
... and small.
big and small.
day and ...?
day and night.
go and ...?
go and stop.
boy and ...?
boy and girl
dark and ...?
dark and light.
cold and ...?
cold and hot.
expensive and ...?
expensive and cheap
tall and ...?
tall and short.
happy and ...?
happy and sad.
closed and ...?
closed and open
big and ...?
big and small
clean and ...?
clean and dirty
long and ...?
long and short
hard and ...?
hard and soft.