Questions & Answers about На юбке появилась складка, и я решила её погладить.
Why is it на юбке, not в юбке?
Because the crease is understood as being on the surface of the skirt.
- на юбке = on the skirt
- в юбке = in the skirt
For marks, wrinkles, folds, stains, buttons, pockets, and similar things on clothing, Russian often uses на.
So На юбке появилась складка is the natural way to say that a fold/crease appeared on the skirt.
Why is юбке in the form юбке?
Because на here requires the prepositional case when it means location.
The dictionary form is юбка.
Its prepositional singular is юбке.
So:
- юбка = skirt
- на юбке = on the skirt
Why is складка in the nominative case?
Because складка is the subject of the verb появилась.
The sentence structure is basically:
- На юбке = location
- появилась складка = a crease appeared
Even though English often starts with A crease appeared..., Russian can naturally begin with the location: На юбке появилась складка.