[one of + plural noun + singular verb.]
(f) None of those reasons is valid INFORMAL USAGE: (g) None of those reasons are valid.
(h) Either (one) of those books (i) Either (one) of those books are adequate. is adequate.
(j) Neither (one of the girls (k) Neither (one) of the girls are here. is here.
Above is from this source
https://isu.indstate.edu/writing/esl/set ... VI3AP.html
(f) None of those reasons is valid INFORMAL USAGE: (g) None of those reasons are valid.
(h) Either (one) of those books (i) Either (one) of those books are adequate. is adequate.
(j) Neither (one of the girls (k) Neither (one) of the girls are here. is here.
Above is from this source
https://isu.indstate.edu/writing/esl/set ... VI3AP.html












