ingenjörernas
ingenjörernas is a Swedish noun form used to express possession by a group of engineers. It is the genitive (possessive) of the definite plural noun ingenjörerna, meaning the engineers. The form is produced by adding the possessive suffix -s to the definite plural, yielding ingenjörernas to indicate something belonging to or associated with the engineers as a group. In standard Swedish, this construction is regular and does not require punctuation such as an apostrophe.
Usage of ingenjörernas occurs before a noun to denote ownership or association: ingenjörernas arbete (the engineers’
Grammatical notes: the corresponding singular possessive is ingenjörens (the engineer’s). The plural indefinite is ingenjörer, while
See also: Swedish grammar, possessive constructions in Swedish, list of Swedish noun declensions.