BOTH


Meaning of BOTH in English

determiner , pronoun ~ of (we saw ~ of them)

USAGE NOTE: The use of the preposition of is necessary when a pronoun follows. When a noun follows, two constructions are possible

--we saw ~ of the students; we saw ~ students.

The Bbi combinatory dictionary of English, a guide to word combinations.      Комбинаторный словарь английского языка Bbi. Руководство по словосочетаниям.