The part of the sentence "which is incomplete" is correct and usable in written English.
You can use this phrase to refer to something that is not finished, such as when you are describing a project or task that still needs work. For example, "I am currently working on a project which is incomplete."
The government report released Thursday had been requested by the country's prime minister and is not related to the criminal inquiry, which is incomplete.
Behind Persepolis are three sepulchres hewn out of the mountainside; the facades, one of which is incomplete, are richly ornamented with reliefs.
With powerful computers, folding simulators today need to get away from explaining their work so much in terms of a long standing energy landscape model, which is incomplete.
The draft, which is incomplete, is critical of the Police Department's stop-and-frisk policies and other aggressive tactics that have been used in recent years, an official said.
Comparative genome sequence analysis revealed that the higher ethanolic fermentation efficiency in strain X514 was associated with the presence of a complete vitamin B12 biosynthesis pathway, which is incomplete in strain 39E.
The public debate has mostly been operating off the Chronicle and Connotate's study, which is incomplete.
Sakaguchi et al. determined the genome sequence of the Clostridium botulinum phage c-st and determined that it carries 12 ISs (5 of which are incomplete) [ 71].
The letter, which was incomplete, began, "Dear Butts".
It had made "something of a mess" of timelines for the key hacking victims, which were incomplete and potentially misleading.
Before Bayer's work, star charts were based on Ptolemy's star catalog, which was incomplete and ambiguous.
He attempted a pass, which was incomplete, and he was dragged down from behind by linebacker Brandon Short, who came up on a blitz.
