there have been
Il y en a eu un pour commencer, plusieurs autres les jours suivants.
There was one to start with, several more in the following days.
— Solaris (1972)
There was another one.
À part cette fois-là, il y en a eu une autre.
Besides that time, there was another one.
— Un Soleil (2019)
There was another one.
There were many.
Il y en a eu tellement, au point que je les lis plus.
There have been so many of them that I no longer read them.
— Chicago (2002)