Can you use the base of the 〜ます form to mean "and" in spoken Japanese?


When written I've read that you can use the base of the 〜ます form to mean
"and". But does the same rule apply when spoken?

For example, does the following sentence make sense **when spoken**?

> そしてシステムにログイン **し** 、部品を探し注文します

Or should it instead be:

> そしてシステムにログイン **して** 、部品を探し注文します




This usage is called [中止法](https://japanese.stackexchange.com/q/9771/5010).
You can use it safely in formal speech, but it's rare in casual speech. For
example, a mother would almost never say 早く歯を磨き学校に行きなさい to her children.




This usage is called [中止法](https://japanese.stackexchange.com/q/9771/5010).
You can use it safely in formal speech, but it's rare in casual speech. For
example, a mother would almost never say 早く歯を磨き学校に行きなさい to her children.

