What's the difference between "exist" and "exists" in this sentence?
Throughout the United States a wide variety of wetlands exist, ranging from permafrost wetlands in Alaska to tropical rain forests in Hawaii
exists = singular unit of meaning, either one person or one group of things (eg this disease only exists in Africa)
exist = plural unit, either people or things eg 'large groups of people exist in harmony' or 'a wide variety of wetlands exist'
27 décembre 2015
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