decide on

I feel that I oughtn’t to decide on anything without consulting him.

“I must not decide on my own performance.”

Pardon me for neglecting to profit by your advice, which on every other subject shall be my constant guide, though in the case before us I consider myself more fitted by education and habitual study to decide on what is right than a young lady like yourself;” and with a low bow he left her to attack Mr.

Darcy had to decide on the propriety of his friend’s inclination; or why, upon his own judgment alone, he was to determine and direct in what manner that friend was to be happy.