要不是...就
表示已經遺憾之事實


＃現在遺憾
If it were not + that + S + 現在式, S + 3D1T 原V
= If it were not for + 名詞, S + 3D1T 原V
= were it not for + 名詞, S + 3D1T 原V
= but for + 名詞, S + 3D1T 原V
= without + 名詞, S + 3D1T 原V

if it were not that I am stupid, I might be with you
if it were not for stupid, I might be with you
were it not for stupid, I might be with you
but for stupid, I might be with you
without stupid, I might be with you

if it were not that I jizz inside you, I might be single
if it were not for jizz, I might be single
were it not for jizz, I might be single
but for jizz, I might be single
without jizz, I might be single

◎要變就名詞
3 for without for



＃過去遺憾
If it had not been + that + S + 現在式, S + 3D1T 原V
= If it had not been  for + 名詞, S + 3D1T 原V
= had it not been for + 名詞, S + 3D1T 原V
= but for + 名詞, S + 3D1T 原V
= without + 名詞, S + 3D1T 原V
if it had not been that I am stupid, I might have been with you
if it had not been for stupid, I might have been with you
had it not been for stupid, I might have been with you
but for
without