past tense de sing, past tense de see, past tense de send, past tense de sell, past tense de set, past tense de ring, past tense de speak, past tense de shop, past tense de sit, past tense de study, past tense de shine, past tense de start, past tense de sleep, past tense de say, past tense de stay
past tense de sing. There are any references about past tense de sing in here. you can look below.