The committee split over government subsidies.
How can I make clear the meaning of the sentence in case I want to differentiate 'present form of split' from 'past form of split'?
The committee split over government subsidies.
How can I make clear the meaning of the sentence in case I want to differentiate 'present form of split' from 'past form of split'?
There are lots of ways to do this:
The committee is split...
The current state of the committee is that it is split.
The committee was split...
It used to be split in the past. It may nor may not still be split. Grammatically this might mean that somebody split the committee, but context would usually make that clear.
The committee has split...
The committee has taken an action that specifically divides itself.
In present simple, most people would say 'The committee splits over every decision', so the ambiguity doesn't arise. Some people understand 'committee' as plural (they say 'the committee are' or 'the committee were'). These people would probably say 'The committee split over every decision', so the ambiguity does arise. Another solution is more context: "The committee split over every decision, so the members voted them out and elected a new one" (past simple) or "The committee split(s) over every decision so everything takes much longer than it should" (present simple).