present tense
i play badminton last week
(+)
(-)
(?)
she buys me a drink
(yesterday)
(+)
(-)
(?)
they are happy
(this morning)
(+)
(-)
(?)
i play badminton last week
(+)
(-)
(?)
she buys me a drink
(yesterday)
(+)
(-)
(?)
they are happy
(this morning)
(+)
(-)
(?)
Penjelasan:
(+) i play badminton last week
(-) i did not play badminton last week
(?)did i play badminton last week
(+) she buys me a drink yesterday
(-) she did not busy me a drink yeterday
(?) did she busy me a drink yesterday