Q. We're making sentences with present perfect and I wonder if "I haven't seen the college in a year" sounds natural to native English speakers.
It sounds weird to me. Surely, technically it must be OK? "I haven't seen her in ages" is a common enough expression. However "I haven't been to the college in a year" sounds natural. Which also includes all that would include Seeing, smelling etc.
"I haven't seen the college in a year" sounds like the writer is recovering from serious eye surgery or something. But it is just my opinion. However this may have been influenced by the fact you have specified a time: try "I haven't seen the college in ages", now that sounds better.
The important thing to remember about the present perfect is that you can’t use it when you are being specific about when it happened.
Ref Grammarly
The present perfect tense refers to an action or state that either occurred at an indefinite time in the past (e.g., we have talked before) or began in the past and continued to the present time (e.g., he has grown impatient over the last hour). This tense is formed by have/has + the past participle.
The construction of this verb tense is straightforward. The first element is have or has, depending on the subject the verb is conjugated with. The second element is the past participle of the verb, which is usually formed by adding -ed or -d to the verb’s root (e.g., walked, cleaned, typed, perambulated, jumped, laughed, sautéed) although English does have quite a few verbs that have irregular past participles (e.g., done, said, gone, known, won, thought, felt, eaten).
The important thing to remember about the present perfect is that you can’t use it when you are being specific about when it happened.
- CORRECT....I have put away all the laundry. --
INCORRECT....I have put away all the laundry this morning.*
You can use the present perfect to talk about the duration of something that started in the past is still happening.
She has had the chickenpox since Tuesday.