〜と見ると: meaning and usage

How to form it

• plain form+と見ると/と見るや
• noun+と見ると/と見るや

How it is used

As soon as someone judges that A is the case, they act (B); usually describes a third person's reaction or habit. 「と見るや（否や）」 is more literary and stresses how quick the reaction is.

Examples

1. 彼女は私が困っていると見ると助けてくれました。

   She helped me as soon as she realized I was in trouble.

2. 店主は、雨が降りそうだと見ると、すぐに商品を中に入れた。

   Seeing that it was about to rain, the shopkeeper brought the goods inside at once.

3. その猫は、相手が弱いと見ると急に強気になる。

   That cat suddenly turns bold the moment it sees its opponent is weak.