inflects
v. 变(音),转(调)( inflect的第三人称单数 ); 使(词)屈折变化; 屈折变化
If a word inflects, its ending or form changes in order to show its grammatical function. If a language inflects, it has words in it that inflect.
In English, the verb inflects by endings.
英语动词靠词尾发生变化.