用half of， most of， none of， heaps of， lots of， plenty of 等引起主語時，謂語動詞通常與of后面的名詞/代詞保持一致。例如：

Most of his money is spent on books. 他大部分的錢化在書上了。

Most of the students are taking an active part in sports. 大部分學生積極參與體育運動。

2)用a portion of， a series of， a pile of， a panel of 等引起主語時，謂語動詞通常用單數(shù)。例如：

A series of accidents has been reported. 媒體報道了一連串的事故。

A pile of lots was set beside the hearth. 爐邊有一堆木柴。

3)如 many a 或 more than one 所修飾的短語作主語時，謂語動詞多用單數(shù)形式。但由more than… of 作主語時，動詞應與其后的名詞或代詞保持一致。例如：

Many a person has read the novel.許多人讀過這本書。

More than 60 percent of the students are from the city.百分之六十多的學生來自這個城市。