(nežinomas) (archyvas)
tenses (active and passive),
passive causative (have sth done),
vocabulary (definitions and active words),
word family (e.g. perceive, perception, perceptual), prefixes: in, un, im, il, ir, de, dis, mis (e.g. inaccurate, unconscious, illegal, irresponsible, immaterial, deconstruction, disability, misunderstanding and etc.).
