tenses

PRESENT TENSE
(+) Nisa works everyday
(-) Nisa doesn't work everyday
(?) does nisa work everyday ?

PAST TENSE
(+) she went to Bali yesterday
(-) she didn't go to bali yesterday
(?) did she go to yesterday ?

PRESENT CONTINOUS.T
(+) I'm playing basketball now
(-) I'm not playing basketball now
(?) am I playing basketball now ?

PAST CONTINOUS.T
(+) they were studying english
(-) they were not studying English
(?) were they studying English ?