Verb strings; The imperative: strong verbs; The imperative: other types of verb; The negative imperative.

A verb string is two or more verbs which follow each other without an intervening particle such as 'inn 'that'. For example, an English expression like 'he wants to go' is translated into Arabic by a verb string which means literally 'he wants he goes'; 'he couldn't do it' is literally 'he couldn't he does it'. The first verb in such strings is usually called an auxiliary verb. In this unit we will look at some of the more important verbal strings involving the imperfect tense.