Answer - Infinitive
A verb that starts with "to" is in an infinitive verb form. Typically, an infinitive can function as adverbs, adjectives or as nouns; it usually does not function as a verb. Also, an infinitive <span>has no inflection binding it to a particular subject or tense.</span>
Answer:
At a low point, in a state of decline or depression. For example, The current recession has put our business at a low ebb. This idiom transfers the low point of a tide to a decline in human affairs.
Explanation: