ИС
Ирина Степанова
auxiliary verbs: be (am, are, is, was,were, being ), can, could, dare, do( does, did ), have( has, had, having ),may, might, must, need, ought, shall, should, will, would
linking verbs: be (am, is, are, was, were, has been, are being, might have been, etc.),become, seem, appear, feel, grow, look,prove, remain,smell, sound, taste, and turn .