(verb) Subsitute, use two things for the same purpose. Example: Native speakers of English interchange <em>going to</em> and the <em>present continuous</em> to talk about future plans and arrangements.
(verb) Subsitute, use two things for the same purpose. Example: Native speakers of English interchange <em>going to</em> and the <em>present continuous</em> to talk about future plans and arrangements.