If I am looking at a list of tasks and I want to say "names of the tasks", is it wrong to say "tasks names" ? I usually see "task names", but how do you know that that means "the names of the tasks" instead of "the names of the task" (a task can have more names) ?
The choice of "task" and "name" here is just an example, it could be anything.
Best Answer
English does not require that modifiers agree in plurality with nouns like some other languages.
In the phrase task names - task is an adjective answering the question what kind? for the noun names. The s on the end of task would only be present if it's a plural noun (or singular verb - e.g. she tasks me with taking out the trash.).