I want to say
During the past years, effort(s) has been made to ...
Since the scenario is that there are many groups of people involved, I am not sure which one I should use.
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Sign up to join this communityI want to say
During the past years, effort(s) has been made to ...
Since the scenario is that there are many groups of people involved, I am not sure which one I should use.
Effort can be used as an uncountable noun or as a countable noun in which case its plural is efforts.
Much effort has been made.
Many efforts have been made.
These are both grammatical.