The phrase "are several patterns of" is correct and usable in written English.
It can be used when discussing different types or variations of something in a particular context.
Example: "In the study of human behavior, there are several patterns of response that researchers have identified."
Alternatives: "exist multiple patterns of" or "can be found various patterns of".
There are several patterns of renal involvement which have been described; these include generalised renal enlargement, wedge-shaped or rounded parenchymal lesions (usually located in the renal cortex) (Figs. 9a, b), renal pelvic lesions (Fig. 9c, d), and the development of a perirenal soft tissue rind (Fig. 10).
There are several patterns of ILD other than ILD with acute respiratory failure and 'classic' ILD.
There are several patterns of vegetative reproduction in orchids, varying between species possessing different life forms [ 16].
However, there were several patterns of fixed bias between the mastectomy and laparoscopic prostatectomy groups.
There were several patterns of triplet presentation in each block, as follows.
In the diagnosis of CHD in TCM, there could be several patterns of syndromes for one patient, while the conventional single label data mining techniques could only build one model at a time.
There are several patterns that emerge from our analysis of CI, i.e., the hatchability of eggs in response to the infection status of sires and dams (and the age of the sire; Figure 1).
Comparison of C-type lectins in the immune systems of humans and mice shows that there are several distinct patterns of evolution.
While it is difficult to generalize for the wide range of neoplastic diseases that are broadly labeled as cancer, there are several common patterns of metastatic progression.
Regardless of the extensive knowledge on cold-related physiological changes, there is little understanding about which pathophysiological mechanisms are important in mediating the effects of cold weather, because there are several alternative time patterns of exposure.
As mentioned in Section 1, for standard QR code format, there are several kinds of extra patterns, such as finder patterns and alignment patterns, placed on the image to enhance the machine-readability.
