3. The definition of a modal auxiliary is a verb that is
used with another verb to express a mood or
tense.
Examples of a modal auxiliary include can, may, must,
ought, shall, should, will and would. An example of a
modal auxiliary is the word "must" in the sentence
"she must attend the party."
4. Modal auxiliary adalah sekelompok kata bantu yang merupakan bagian dari
auxiliary yang memberikan tambahan arti pada suatu kalimat.
auxiliary (adj): providing supplementary or additional help and support.
"auxiliary airport staff"