1、such as后面接动词的ing形式，是动名词形式，在such as后用作名词。

2、such as也可以加动词原形。

such as的用法

1、Trees such as spruce， pine and oak have been planted.

种植了云杉、松树和橡树等树木。

2、There are also unpleasant brain effects such as anxiety and neurotic behaviour.

也会对大脑产生不良影响，如焦虑和神经质的行为。