tryI'll try to call her again.
attemptI have never attempted to run a marathon.
endeavourUKEngineers are endeavouring to locate the source of the problem.
seekformalThey sought to reassure the public.
battleHe was battling to fix the roof in the rain.
struggleI've been struggling to understand this article all afternoon.
go to great lengthsShe knew that her parents would go to great lengths to see that she got a good education.