i believe i can能不能单独使用

i believe i can能不能单独使用 I Believe I Can I believe.I can. I Believe I can I Believe I believe me I can Believe me.I can I Believe I Can 歌词 I believe I can fly I believe I can fly. Believe myself ,I can made I can h______ believe that. I can not believe it I say can you believe who else can i believe who can I believe in I can doing believe me How can I believe you I believe that I can forget