you`d better to do sth

you'd better do sth.
better后面加动词原形。

究竟是you'd better to do sth还是you'd better do sth，为什么！~

1楼的回答不准确，并不如他所说：
其实还有这样的用法：would better to do
后面的better接的就是to do的形式。

确切地说，应该是you'd better do sth，这是固定的用法，没有什么原因，讲得明白些就是固定的语法吧！

you'd better do sth =you HAD better do 意思是最好做

would better to do 意思是愿意做，想做
两者不矛盾

you'd better do sth.
better后面加动词原形。

to后跟动词原形do应是you'd better to do sth

问题在说清楚点咯