Why don't you conjugate abrir when asking “can you open the door?” in spanish can someone please explain this?

The Spanish verb abrir nearly always works as the equivalent of "to open" or "to open up." You can use abrir to refer to the opening of a diverse array of things such as doors, stores, nuts, containers, wells, curtains, books, and mouths. So you wouldn't need to conjugate it.

Explanation:

I'm better at japanese but I think I'm correct.

these are the words to choose from to people answer the question:

nieta--yerno--tia--tio--primo--nuera--abuelo--cunada