Can I use singular verb for these sentences?
Sentence 1. "Twenty gallons of paint is needed to paint the house"
Sentence 2. "Three members of the staff/crew is needed to paint the house"
I know there are other threads with similar questions so plaese don't mark this as duplicate as I'm asking a particular questions in this thread.
Edit. I'm in cofusion because the first example has a mass/uncountable noun and the second example has a singular noun and from what it says here it should be singular verb because it says the following: "Generally speaking - though there are exceptions - the fraction takes the same plurality as the thing it modifies; see here for a good explanation." so I don´t know if the sentences need a singular or plural verb.