Q1: Empezamos Q2: cierras; quiero Q3: Prefiero Q4: Pierden Q5: Van Q6: Quieren Q7: Cierra Q8: Van Q9: Duerme Q10: Estudiar para un examen Q11: 4231 Q15: 1 Q16: Miguel y Yolanda Q17: 1423 Q18: Telenovela Q19: Juega Q20: Jugar Q21: Juegan
For future reference, a 'cognate' is a term that sounds the same, or very similar, in both Spanish and English. Also, for conjugation questions I would like to direct you to perhaps use SpanishDict.com, where you can view verb conjugations for every tense. I found that it helped me greatly through my Spanish language courses.