I have "The gladiators should fight", and this was marked wrong.
I think I could have said this sentence when I was at the Colosseum back many lives ago, watching the gladiators who were there, and unhappy with their lack of fighting spirit. Since I was talking about specific gladiators, the sentence with the definite article should be correct.
What do you think? Should I report it or am I overlooking something? Thanks! :-)
Couldn't this also be "They have to fight gladiators", since gladiātōrēs is both the nominative and the accusative plural?
EDIT as pointed about my mosfet07 below, pugnō is only intransitive unlike "fight" which can be intransitive or transitive. So it's only possible for gladiātōrēs to be nominative in this instance.
There is a case for all of these options, but they all fall on the spectrum of degrees of obligation without the force of compulsion. The only verbs that have the element of compulsion are "to have to" and "must", and of those "must" is probably the stronger.
It is possible to say: "I should go, but I must stay" with no confusion. "Although I am obliged to go, I must remain" is also possible, I feel, because "to be obliged to" does not contain the ultimate force, necessity and compulsion of "must".