I can't manage to
Simplemente no logro acostumbrarme.
I just can't get used to it.
Hace un mes que no logro hablar con ella.
I haven't been able to speak to her for a month.
— Burning (2018)
I can't understand it.
No logro deshacerme de este dolor de cabeza.
I can't get rid of this headache.
I can't manage to open the door.
No logro entender por qué cambió tan repentinamente.
I can't understand why it changed so suddenly.
— Vivir (1952)
Está enfadada por algo, no logro comunicarme con ella.
She's angry about something, I can't get in touch with her.
— La ola (2008)