be动词改否定句.请给我找25句!5个be动词每个找5句共25句急我会另外加分的!我希望词句能全面一点的俄

1.I'm a teacher
Iamn't a teacher
2.I'm a student
I'm not a student
3,I'm a dancer
I'm not a dancer
4.I'm a writer
I'm not a writer
5.I'm a librarian
I'm not a librarian
are
1.They are teachers
They aren't teachers
2.We are students
We arenot students
3.You are dancers
You aren't dancers
4.They are writers
They aren't writers

1.I'm a teacher
Iamn't a teacher
2.I'm a student
I'm not a student
3,I'm a dancer
I'm not a dancer
4.I'm a writer
I'm not a writer
5.I'm a librarian
I'm not a librarian
are
1.They are teachers
They aren't teachers
2.We are students
We arenot students
3.You are dancers
You aren't dancers
4.They are writers
They aren't writers
5.We are librarians
We are not librarians
如何?

1.I'm a teacher
Iamn't a teacher
2.I'm a student
I'm not a student
3,I'm a dancer
I'm not a dancer
4.I'm a writer
I'm not a writer
5.I'm a librarian
I'm not a librarian
are
1.They are teachers
They aren't teachers
2.We are students
We arenot students
3.You are dancers
You aren't dancers
4.They are writers
They aren't writers
5.We are librarians
We are not librarians