英语.请指出下列句子属于什么语法现象.

英语.请指出下列句子属于什么语法现象.
好的话可以追加分数!
请指出下列句子属于什么语法现象.
1.How time flies!光阴似箭
2.Seeing is believing.To see is to believe眼见为实
3.To know everything is to know nothing.样样皆通,一样不通
4.Eat to live,but not live to eat.人为生存而饮食,无为饮食而生存
5.Never too old to learn.活到老,学到老
6.It is no use crying over split milk.覆水难收
7.Roman was not built in a way.伟业非一日可成
8.When you are at Rome,do as the Romans do.入乡随俗,入国问?
9.Never put off till tomorrow what may be done today.今日事,今日毕,千万不可待明日.
10.Where there is a will there is a way.有志者事竟成.
11.Whatever I do ,I will do in my power.
12.Strike while the iron is hot.趁热打铁.
13.The more ,the better.越多越好
14.Actions speak louder than words.百说不如一干/行动胜于空谈.
15.Many heads are better than one.
16.The darkest hour is that before the dawn.黎明以前最黑暗
17.Hope for the best,but prepare for the worst.希望最好,准备最坏