The Rolling Stones are coming to town and my Grandma, whose older then God is going to try and see them. (7)
1. We have an agreement problem—“The Rolling Stones” is singular, so we need to use the verb “is” and the pronoun “them” or a corresponding noun. Yes, this sounds stupid. Welcome to my world. Maybe this would be a good time to emphasize the difference between the spoken word and the written word.
2. We need a comma before the conjunction “and” connecting the two independent clauses.
3. “Grandma” is a common noun and begins with a lower case letter; “Grandma” without the possessive pronoun “my” would be a proper noun.
4. The possessive pronoun “whose” should be the contraction “who’s.”
5. The adverb “then” should be the conjunction “than.”
6. We need a comma after “God” to set off the nonessential adjective clause.
7. “to try and see” should be the side-by-side infinitives “to try to see.”
corrected version might read
The Rolling Stones is coming to town, and my grandma, who’s older than God, is going to try to see the concert.