Sentences whose verbs do not agree with the subject include:
Either of the girls <u>are</u> a good choice for a leader.
Explanation:
In this case, <em>are</em> should instead be replaced with <em>is</em>. You can think of <em>either </em>as <em>either one</em> - <em>one </em>is singular and so would be its verb.
To lie down means to be in a flat position on a particular surface. Comparing it to lay: lay means to place a particular object down flat. Lie is intransitive as it does not take a direct object meaning no word tells us who or what recieves the action of the verb