To see the sentence is grammatically correct, these things should be kept in mind
1)That while speaking the sentence verbally ,it should sound correct.
2) See that the sentence has subject-verb agreement
3) Please bear that in mind also that the sentence is in proper order form also.
4)The tenses should be correct,if you are using present,the whole sentence should be in present tense,if in past,then past tense should be used...for example
Mary is going to the market to buy vegetables.¬ like this
Mary is going to the market to bought vegetables.
4)Finally, see that the commas, hyphens, question marks,&inverted commas are placed properly.
I think then the sentence