The term 'to be' can be expressed in many different ways. The crossword solutions for this term include ESSE (4 letters), ETRE (4 letters), SOON (4 letters), USED (4 letters), ELECT (5 letters), and ITHAS (5 letters). ESSE is the Latin infinitive form of the verb 'to be, ' while ETRE is the French infinitive form. SOON is an adverb that means 'in the near future, ' and USED is the past participle of the verb 'to use.' ELECT is a verb meaning 'to choose, ' and ITHAS is an archaic form of the verb 'to have.'