He was never a responsible person.
Never was he a responsible person.
She has never had a pet.
Never has she had a pet.
He not only bought a ring, but...
Not only did he buy a ring, but...
She not only talked to him, but...
Not only did she talk to him, but...
She seldom gets up early.
Seldom does she get up early.
He seldom goes to the office.
Seldom does he go to the office.
