to convince her, to persuade her
Ojalá puedo convencerla de que cambie de opinión.
I hope I can convince her to change her mind.
No lograron convencerla.
They couldn't convince her.
Buena suerte con convencerla.
Good luck convincing her.
Debes ir con ella y convencerla.
You must go to her and convince her.
— El sacrificio (1986)
Me tomó un rato convencerla.
It took me a while to convince her.