noun
1
BAD : I seldom stay at home on weekend.
GOOD : I seldom stay at home at the weekend.
BAD : At weekend we go to the sports club.
GOOD : At the weekend we go to the sports club.
BAD : During the weekend we usually go to a Chinese restaurant.
GOOD : At the weekend we usually go to a Chinese restaurant.
2
BAD : During this weekend there is a squash tournament.
GOOD : This weekend there is a squash tournament.