We went to the circus and saw many amazing things under the big top.
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The big ship was getting rustie under water.
big new pool.
big fish, little pondto be a big fish in a little pond
big fish, little pondto be a big fish in a little pond
He had a big Welt on his face. This may not be a good sentence but it is one
A tip is an extra payment for good service, or an extra bit of information that you're sharing to benefit someone. This might be either one depending on the context of the sentence.
"She marveled at the sight of the great big waterfall."
The sentence that shows the correct subject-verb agreement would be "Under the house are two big turtles." To make the first sentence correct it would have to read "Under the house are too big turtles" indicating that the turtles are too large to be under the house.
I was really embarrassed by my big blunder.
There is not a big population of polar bears.
I forced my big body into the little hole.
There was a big disaster after the tornado in town.