(saya sudah belajar di smpn 159 sejak tahun 2015) terjemahkan ke bahasa inggris dan di ubahnyanya menjadi (+),(-),(introgativ)

i have studied at Smpn 159 since 2015
i havent studied at smpn 159 since 2015
Have you studied at smpn 159 since 2015?

(+) I have learned in smpn 159 since 2015 (-) I have not learned in smpn 159 since 2015 (?) have you learned in smpn 159 since 2015