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A. sings; sings sing; sing sang; sings sings; sang
sing sang to sing singing
to sing sing sang to be sang
sing singing to sing sung
to sing sang sing singing
singing the same song to sing the same song sing a same song to be playing same song
she sang sang she did she sing she did sing
singing to sing sings sing
heard sing was heard singing was heard to sing was heard sing
singing the same song to sing the same song sing a same song to be playing same song
to sing sang sing to be sung
sings sing is singing is sing
sing sang to sing to singing
sing sang to sing singing
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