"we simultaneously have" is a perfectly fine and usable part of a sentence in written English.
You can use it to describe that two or more people have something at the same time. Here is an example sentence: We simultaneously have the same goal of creating a successful business.
We simultaneously have people working extended hours and persistent unemployment.
We simultaneously have more choice than ever, yet feel the increasing weight of such little, little choice.
We simultaneously have more choice than ever, yet feel increasingly the weight of such little, little choice.
We simultaneously have more choice than ever, yet feel increasingly the weight of such little, little choice.
We all have access to so much content, and we simultaneously have a platform that allows us to express ourselves to some kind of audience.
And while we realize just how provincial our lives and beliefs and assumptions are, we simultaneously have revealed to us the beautiful simplicity of the human experience.
And we simultaneously had bidders online.
"We can simultaneously have that community orientation and maintain high aesthetic and visual standards," Mr. Finkelpearl said, adding, "We're embracing the fabulousness of Queens".
Samaras, the prime minister-designate pledged to stick broadly to the Greek bailout terms but added: "We will simultaneously have to make some necessary amendments to the bailout agreement, in order to relieve the people of crippling unemployment and huge hardships".
The fantasy that says we can simultaneously have the powers and capabilities of the technologizing medium without its ambiguous limitations is a fantasy of desire" (p.15).
Cytokinin oxidases, important cytokinin inactivators [ 35], are actually known to be up-regulated by the presence of the hormone itself [ 35, 36], meaning that upon infiltration with cytokinins we could simultaneously have triggered their increased inactivation.
