We have finished the project -> We haven't finished the project.
-> Have we finished the project?
We've been learning for two years. -> We haven't been learning for two years.
-> Have we been learning for two years?
She's been watching tv for two hours. -> She hasn't been watching tv for two hours.
->Has she been watching tv for two hours?
They've brought an umbrella. -> They haven't brought an umbrella.
-> Have they brought an umbrella?
I've been writing an umbrella.( cee?) -> I haven't been writing.
-> Have I been writing?