The phrase "are in the process of preparing" is correct and usable in written English.
It can be used when indicating that someone or a group is currently engaged in the act of getting something ready or organized.
Example: "The team members are in the process of preparing the presentation for the upcoming conference."
Alternatives: "are currently preparing" or "are working on preparing".
The companies are in the process of preparing to drill again in the Gulf in the days ahead.
For portable seismographic data, we are in the process of preparing several manuscripts using the data set.
I feel I have learned so much, and the project too has been very successful, as judged by the publications we are in the process of preparing.
Shell said: "We are in the process of preparing for a trial in May 2015 regarding the Bodo operational spills, at which time internal documents produced by SPDC relating to the Trans Niger Pipeline TNPP) will be set in their proper context for review by the court".
"We are in the process of preparing manuals that will focus on FAS and its prevention," said New Breast, who is also involved in a statewide effort to get legislation to require health-warning labels on alcoholic beverage containers.
By listening, by observing, by asking the right questions at the right time, good hospice workers like Carolyn can recognize where patients and loved ones are in the process of preparing for end of life and can then take the right opportunity to help, support and educate.
"We're in the process of preparing the facility and will be ready to go racing tomorrow".
The Australian Homeopathic Association said it was in the process of preparing a formal response to the NHMRC report.
There was homemade pizza dough to be rolled and salmon tartare to season, just two among the six dishes he had prepared, or was in the process of preparing, for the evening.
The second argument made within Samsung's plea was that the company was in the process of "preparing" a petition to have Apple's Community design invalidated.
