The phrase "are given mostly" is correct and usable in written English.
It can be used when discussing the frequency or predominance of something being provided or assigned.
Example: "The resources for the project are given mostly to the team members who have the most experience."
Alternatives: "are primarily given" or "are mainly provided".
If children are given mostly bottled water, a fluoride supplement would be a sensible idea.
Most examples and some very recent original developments are given, mostly in the field of neutronics that has traditionally provided cutting edge advances for simulation tools validation.
Those estimates are given mostly for demonstration purposes, i.e. in order to illustrate the scope of accidents definitely saved due to the infrastructure improvements examined in the current study.
But the ACT is given mostly in Midwestern states with fewer non-English speakers.
Reports are circulating of the flats promised to the victims of the violence being given mostly to Kyrgyz families.
At first, he was given mostly cops who had conditions that rendered them unfit for other duties.
The idea is that the money is given for the extra work, but in Albany's world, it is given mostly for extra work helping the leaders.
Thus far, audiences have been given mostly songs from his back catalogue and covers, which is what he provided at a ninety-minute-long surprise performance at Bonnaroo this summer with Questlove.
In short, in recent years the group has had a sort of hanger-on-ectomy, so last night's fund-raising dinners were given mostly by people successful in the arts, including writers, not merely prosperous bystanders.
He noted that the vaccine had been given mostly to young military recruits and that the authorities did not know how other people, particularly the elderly, pregnant women and people with impaired immune systems, would react to it.
The stipends, which were given mostly to foreigners, have long been decried as unfair because they do not come with basic social security benefits.
