Надо составить 2 предложения с there is there are 2 положительных 2 отрицательных 2 вопросительных

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1)There is a cow next to barn 2) There is a apple on the table 1) There are five birds in the sky 2)There are four foot in the barn отрицательный 1) There isn't a cow next to barn 2)There aren't five birds in the sky вопросительный 1) Is there a cow next to barn 2)Are there five birds in the sky