It is used in the linguistic to show that the action of the verb is not yet realized or is hypothetical. It is just one of the modes of English conjugation.

SUBJUNCTIVE: "Subjunctive is just a mode like interrogative, indicative and imperative but it is one of the modes that children, take time to understand. "
Cite this page: N., Pam M.S., "SUBJUNCTIVE," in, April 13, 2013, (accessed April 19, 2021).