这个英语句子改否定句?
1：jim has alredy come to schod late
2: ton alwoys come to schod late
3: I think there is going to be an english test next week
麻烦大家帮我改下否定句,这个我是按照本子上抄的 不知道哪个地方抄错了,请大家帮我改下!