Contoh:
(+) I will clean my room
(+) My boyfriend is going to meet me in my house
(-) I will not clean my room
(-) My boyfriend is not going to meet me in my house
Present perfect tense
Rumus:
(+) Subject + Has/Have + Verb 3 + Object
(-) Subject + Has/Have + Not + Verb 3 + Object
Contoh:
(+) I have studied math for 3 years
(-) I have not studied math for 3 years
Past perfect tense
Rumus:
(+) Subject + Had + Verb 3 + Object
(-) Subject + Had + Not + Verb 3 + Object
Contoh:
(+) Arini had studied English before she moved to England.
(-) Arini had not studied English before she moved to England.
Intransitive Sentence