Is this sentence grammatically correct?
I had to ponder on my future at a beautiful place.
Answer
The sentence is acceptable. But according to Collins Dictionary: ponder
verb
(when intransitive,
sometimes followed by ON or OVER)
to give thorough or deep consideration (TO); meditate (UPON).
The thing is that this verb is usually transitive and is followed by the direct object without any preposition /for example: to ponder future…/.
Attribution
Source : Link , Question Author : heaven-of-intensity , Answer Author : user307254