Plan: The verb. Characteristics of the verb according to the suggested criteria

participles which are non-finite forms of the verb don’t have the category of mood, 
they have the grammatical categories of tense and voice. Terminology mentioned 
above vary from language to language, for example “the conditional mood” in one 
language may largely overlap with that of “the hypothetical” or “potential mood” 
in another . 
The grammatical category of mood is closely connected with the categories of 
tense , person and number of the verb. The speaker’s or the writer’s mental attitude 
towards his/her action or to the reality plays a great role in expressing one or the 
other form of the mood: Indicative, Imperative or Subjunctive. The category of mood 
in English is expressed both analytically and synthetically. Auxiliary verbs should, 
would, may, might are used in combination with the notional verbs in the required 
form of tense, number and person to form the analytical form of the mood; these
are mood auxiliaries which are devoid of their lexical meaning in this function and 
equal to flexions expressing grammatical meaning. 
 
Yespersen Otto (1935), Gurme G.O.(1931) classify three forms of 
mood:Indicative, Imperative and Subjunctive, Sweet H. A.( 1892), classifies five 
forms of mood: Indicative, Subjunctive, Conditional, Permissive and Compulsive.
Smirnitsky A.I. classifies six forms of mood: 
1
.Indicative ( The sun 
rises
in the 
East, She 
wil
l 
translate
this book), 
2
. Imperative ( 
Read
the letter; 
Be
silent) , 
3
. 
Subjunctive