See
Saw
Eat
Ate
She sees a giraffe.
She saw a giraffe.
Think
Thought
He eats a pizza
He ate a pizza.
He sees a bird.
He saw a bird.
I am sad.
I was sad.
She eats a burger.
She ate a burger.
Go
Went
I go to the zoo.
I went to the zoo.
He is happy.
He was happy.
They are excited.
They were excited.
She goes to school.
She went to school.