Please consider these two sentences:
(a) Did the train arrive at 11:00 and departed at 11:15?
(b) Did the train arrive at 11:00 and depart at 11:15?
(a) Did you go to market and bought groceries?
(b) Did you go to market and buy groceries?
Which sentences in set 1 and set 2 are correct?
I have been told to use 1st form of any verb after did (primary auxiliary) but I get puzzled when I use another verb after and.
In a past question made with the primary auxiliary "did", should I use the 2nd form of the verb depart which is departed, or 1st form of the verb depart (in set 1)?
and 2nd form of verb buy which is bought or 1st form buy? (in set 2)
I would really appreciate your help, guys.