если бы в детстве Джону не нравилась математика он не стал бы инженером. Если бы ты не задал столько глупых вопросов во время интервью ты бы получил работу
If childhood John did not like mathematics, he would not have an engineer. If you're not asked so much stupid questions during an interview you'd got the job
if a child John did not like math, he would not have become an engineer. If you had not asked so many stupid questions during the interview you would have got a job