四十英语怎么写

1、四十，forty n.四十；adj.四十的；四十个的。

2、例句：

（1）My car does forty miles to the gallon.我的车每加仑汽油跑四十英里。

（2）They would have been married forty years come this June.到今年六月他们结婚就有四十年了。