Mr naucal (be) a civil servant since 2007(+)(-)(?)

Mr naucal (be) a civil servant since 2007
(+) Mr. Naucal was a civil servant since 2007
(-) Mr. Naucal was not a civil servant since 2007
(?) was Mr. Naucal a civil servant since 2007

#simple past
~ nominal sentence
(+) subject + was/were + object
(-) subject + was/were + not + object
(?) was/were + subject + object ?

semoga membantu

(+) karena tidak ada tanda (?) di akhir kalimat