Question

1. I can't speak Spanish. Nor can my brother

=> Neither

2. She isn't teacher. I'm not a teacher

=> Neither

3. He didn't say a word and he didn't smile

=> He neither

Answer 1

1. I can't speak Spanish. Nor can my brother

=> Neither I nor my brother can speak Spanish

2. She isn't teacher. I'm not a teacher

=> Neither she nor I am a teacher

3. He didn't say a word and he didn't smile

=> He neither said a word nor smile