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The verb 'sews' is the third person singular form; your sentence requires a plural form verb for the plural subject 'Indians':
The Seminole Indians of Florida sew beautifully designed quilts.
More beautifully and most beautifully.
"Sobha Velachery" project comprises of beautifully
designed spacious 1 BHK, 2 BHK, & 3 BHK apartments.
The word beautifully is an adverb.The noun form is beauty.