Explanation
Expresses 'when' or 'in case of' specific situations or timings.
Formation
Verb-dictionary form + 折には, Verb-た form + 折には, い-Adjective + 折には, な-Adjective + な折には, Noun + の折には
Detailed explanation
The ～折には grammar point is used to emphasize a specific moment or situation (often not very frequent). It can be translated as 'when (the occasion arises)' or 'in case of'.
Examples
Nodo ga kawaku ori ni wa, kono pettobotoru no mizu o nonde kudasai.
When you get thirsty, please drink water from this bottle.
Kono chiiki ni kuru ori ni wa, kono jinja ni kanarazu omairi shimashou.
When you visit this area, make sure to go to this shrine.
Kare ga genki ja nai ori ni wa, guai ga warui ka tazunete kudasai.
If he doesn't seem well, please ask if he's feeling sick.
Chansu ga aru ori ni wa, chuucho sezu ni koudou shimashou.
When you have an opportunity, act without hesitation.
Practice
Grammar content sourced from hanabira.org.