The phrase "are normally seen" is correct and usable in written English.
It can be used to describe something that typically appears or occurs in a certain context or situation.
Example: "In this region, certain species of birds are normally seen during the spring migration."
Alternatives: "are usually observed" or "are commonly found".
In the Dominican Friary in Schleswig in Northern Germany Mn-concentrations of ca. 30 μg g-1 are normal and in individuals from the Tirup cemetery outside Horsens in Denmark concentrations of ca. 150 μg g-1 are normally seen (unpublished results).
Offshore bottlenose dolphins are normally seen in groups about 75 miles offshore.
Northern bottlenose whales are normally seen in the north Atlantic off Norway, in the Barents Sea and off northern Britain and Ireland in the summer.
But people who are normally seen only on a stage the powerful and the celebrated lose a little dignity and authority when they're shown barking at their secretaries or putting saliva on their combs.
Meaningful objects, such as trees, faces, books, tables, and dogs, are normally seen rather than separately perceived as the dots, lines, colours, and other elements of which they are composed.
But people who are normally seen only on a stage — the powerful and the celebrated — lose a little dignity and authority when they're shown barking at their secretaries or putting saliva on their combs.
As an internal positive control for E-cadherin staining, positive staining of normal colorectal epithelial cells adjacent to the tumours was used; staining was normally seen at cell – cell borders.
INFERTILITY is normally seen as a private matter.
"In this case," he said, "we took advantage of something that is normally seen as bad.
This is a younger age profile than is normally seen by the courts for similar offences.
The resulting plant, the sporophyte, is the characteristic plant that is normally seen.
