... (non)actualization of the situation referred to, such as (un)willingness, (im)possibility, (in)ability, obligation, necessity, advisability, permission, prohibition, volition, etc Modality which has to with ... IV Part V Part VI Part VII Part VIII Abstract Abstract The aim of this book is to describe the workings of the system of special verb forms used in English to locate situations in time In this ... infinitive (which is the citation form of the verb used as an entry in dictionaries) 1.16 The formation of the past tense The regular past tense indicative form consists of the stem of the verb...