caused
Lamento haberle ocasionado tantos problemas.
I'm sorry to have caused you so much trouble.
Lamento haberte ocasionado tantos problemas.
I'm sorry I caused you so much trouble.
Me disculpo por cualquier problema que haya ocasionado.
I apologize for any problems I may have caused.
Nos has ocasionado muchos problemas.
You've caused us a lot of problems.
— Yojimbo. El mercenario (1961)