which sentence is the correct:, The kids have been play for 3 hours., The kids have been playing for 3 hours., which sentence is the correct:, Salma has been studying English since 2 p.m., Salma has studies English since 2 p.m., which sentence is the correct:, My classmates has been running for 30 minutes., My classmates have been running for 30 minutes., which sentence is the correct:, My neighbors have been building the house since 2020., My neighbors has been build the house since 2020..

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