I confuse with usage of 探し in this sentence:

> 探しに行くんだ そこへ

I have tried to google it. But they show me 探す which is a u-verb. And I am
unable to find _sagashi_. The closest one is _sagashita_ which is its past
form. It is a type of clipping such as "chemistry" becomes "chem" or what?

My question is: in what form _sagashi_ is and when to use it?
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2017-10-29T04:58:18.787
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2017-10-29T09:27:26.847
2017-10-29T09:27:26.847
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question
conjugations renyōkei verbs-of-motion
In which word form does 探し belong to?