(1) is used to do something.
(2) for "for ..."
(3) be used as ...
Be used to doing sth.
(5) Be used by ... ...
Use is a transitive verb, followed by nouns and pronouns as objects. It can also be followed by an as phrase or infinitive as a compound object of complement. Use can occasionally treat people as objects, which means "using someone", that is, using someone as a means or tool.
Used only in the simple past tense, it means something that often happened in the past. Is the negative not to or useless? Use? To.
Extended data:
Third person singular: plural: present participle: past tense: past participle: use.
The word "use" came into English in the middle of the14th century, which directly came from the old French word "user", meaning to use, practice and practice. Usare, originally from late Latin, means to use.
The verbs use, apply and employ all mean "use, apply". Discrimination is as follows:
1. Use common words, the key point is to use someone or something for a certain purpose.
Application refers to the application of one thing to another to play its effective role.
3. Employment refers to the use of people or things that are in a passive state or have not yet been used. Use can be exchanged, but selection and full use are emphasized.