"making it complicated to" is correct and usable in written English.
You can use it to refer to something that is making a task or situation more difficult, such as: The numerous rules and regulations are making it complicated to navigate the system.
Ship owners could easily swap the nationalities of their vessels, potentially making it complicated to keep track of some ships, like chartered vessels, that have used E.U. ports.
Many electronics projects in the ATP were often of an infrastructural nature making it complicated to secure patents.
At these altitudes, the phase fronts emanating from a dish antenna of equivalent size to the EISCAT_3D array would be highly non-planar, making it complicated to interpret the instantaneous signal received from a broad, distributed, horizontally stratified target such as the atmosphere.
In spite of their clear definition of DDCs based on their localization in the skin, there is no straightforward way to detect DDCs in murine LNs due to the lack of DDC-specific marker, making it complicated to correctly understand their roles in immune responses in comparison to LCs.
Importantly, the standard (maximum likelihood) estimate of Σ becomes singular when the number of structures is less than then number of degrees of freedom making it complicated to
Additionally, testing panels can change over time making it complicated to know if and when previously negative testing should be repeated.
The complex nature of PA that covers both sports and non-sport activities makes it complicated to perfectly measure all of its aspects.
Yet if a dividend tax exemption will make it complicated to file taxes, it will also make it harder -- much harder -- for the I.R.S. to enforce the rules.
That makes it complicated to figure out the best way to keep a lab efficient.
Although the control input and nonlinearity exist both in the drift and diffusion terms of the system, which makes it complicated to prove the contraction property of the operator, some inequality techniques are deliberately adopted as demonstrated in the proof of Lemma 3.6, which can effectively overcome the difficulty.
The allegations then, are against a group of nameless people, which makes it complicated to prove that they've been defamed.
