it is supposedly
The cavemen supposedly rode the dinosaurs.
Supposedly is an adverb.
They supposedly moved from Denali, Alaska
Sindbad the Sailor was supposedly born in Sohar, Oman.
We were going to go to the movies, but supposedly there was a power outage.
There is no such word as supposively : the word is supposedly (ostensibly).
Cantarella is supposedly made from insects, specificlly beetles. From beetles a form of arsenic supposedly can be made and that's what makes Cantarella poisonous.
no
Supposedly she has the flu so she won't be in to work today.
The only one of the three that is an actual word is "supposedly" (allegedly).
Tecumseh Tecumseh supposedly predicted earthquakes and his own death.
Supposedly, people don't strive to make a difference because they don't believe that they can.