subject-verb agreement系咩? 急!!!!!!!!!!!!!!

即係如果subject係singular(單數)
咁個verb都會係singular
如果subject係plural(眾數)
咁個verb都會係plural
好簡單既例子,
he is a boy
咁 he (subject)係singular
所以要用 is (verb) 係singular
而你唔會用 are
又或者 he has a ball
咁因為 he 係 singular
所以你會用 has, 而唔係have.