Jack couldn't help but ___(cry) when heis toy car fell in ri

I couldn't help but cry.为什么后面不用不定式to cry呢? Cry,not I want to,but couldn't help it如题 i couldn't help but 英语改错 “He couldn't help to cry when he heard the news” When he fell off the bike,he tried ____ but couldn't . 英语翻译I‘m very ___ ___ ___ at _____,but I couldn't swim in the Jack wasn't in his own car.He was driving ___ car. 一道英语语法题Jack wasn’t in his own car.He was driving ___ car.A) When I secretly sad,reminds of you,but I couldn't help cryin I couldn't help ____.A.to cry B.crying （ ） the car accident,Jack couldn t work any longer. jack ------ a new toy car.