Negative Adverbials
Negative Inversion — Never Have I Seen (C1)
Negative Inversion — Seldom Do, Rarely Do (C1)
Negative Inversion — Hardly Had ... When (C1)
Negative Inversion — Not Until ... Did (C1)
Negative Inversion — Little Did He Know (C1)
Conditional Inversion
Conditional Inversion — Had I Known (C1)
Conditional Inversion — Were I to (C1)
Conditional Inversion — Should You Need (C1)