The cat is sad.
The cat's sad.
The cats's sad
The cats' sad.
He is happy.
She's happy.
He is happy.
He's happy.
He/angry
He's angry.
funny./Patrick's/and/happy
Patrick's funny and happy.
SpongeBob/clean
Sponge Bob's clean.
young/serious./Lisa's/and
Lisa's young and serious.
The girl/sleepy
The girl's sleepy.
The little girl/hungry
The little girl's hungry.
The witch/old
The witch's old.
The dog/dirty
The dog's dirty.
The car is dirty and Squidward is angry.
The car's dirty and Squidward's angry.
The car's dirty and Squidward is angry.
The car are dirty and Squidward are angry.
My birthday is in February.
My birthday's in February.
My birthday's in March.
My birthday are in February.