Theoretical grammar of english

10 FORMS TO EXPRESS UNREALITY:
1. "he go/he be"
#: I insist that he come in time
2. "were" for all persons
I wish I were 10 yrs younger
3. #:1 wish I knew it
4.had known/had gone
#:As if he had known it
5.should/would + Inf
#: If I could, I would go
6. should/ would + Perf Inf
#:he would have gone...
7. should+Inf
#: I insist that he should go i
8. May/might + Inf
9. Would + Inf
#:If he would do smth...
10. can/could+ Inf


15.The category of Mood. Different points of view on the number of Moods in Modern English. Forms used to express unreality in English.
M= mood
There is no unity of opinion concerning the cat. Of M in E. Owing to the difference of approach to Ms (mutual relation between Mg and form) grammarians single out:
Смирницкий: 6 Ms in E: Indicat., Imperat., Subj. I, Subj. II ( conditional and suppositional).
Ильиш, Иванова, Жигадло: 3 Ms: Indic., Imper.,Subj. The latter, according to Ильиш, appears in 2 forms- the conditional and subjunctive.
Бархударов distinguish only 2 Ms- Indic. m and Subjunctive. The latter is subdivided into Subj. I and Subj. II. The Imperat. and the Conjunctive are treated as forms outside the cat. of M.
In general the number of Ms in diff. Theories varies from 2 to 17. In modern E there are 3 Ms: The Indicative M. (IM), The Imperative M (IMP.M), The Subjunctive M (SM)
IM is the basic M of the V. Morphologically it is the most developed system including all the cat-es of the V. It serves to present an action as a fact of reality. It conveys minimum personal attitude to the fact. The speaker’s attitude is neutral.(We went home.)
IM is also used to express a real condition (condition the realization of which is considered possible). (If it rains, I shall stay home.)
IMP.M in E is represented by one form only. Without any suffix or ending. It differs from other Ms in several important points:
1.it has no person, number, tense or aspect distinctions
2.it is limited in its use to one type of sentence only- imperative sent.
IMP.M expresses a command or a request.
Most usually a verb in the IMP.M has no pronoun acting as subject. However, the pronoun may be used in emotional speech, as in the following example: «But, Tessie”- he pleaded, going towards her. «You leave me alone!»- she cried out loudly.
These are essential peculiarities distinguishing the IMP.M and they have given rise to doubts as to whether the imperative can be numbered among the Ms at all. A serious difficulty connected with the IMP. Is the absence of any specific morphological characteristics: with all Vs including the V be, it also coincides with the infinitive, and in all Vs, except be, it also coincides with the Pres. Indic apart from the 3d person Sing. Even the absence of a subject pronoun you which would be its syntactical characteristic, is not reliable feature at all, as sentences You sit here! occur often enough.
Mg alone may not seem sufficient ground for establishing a grammatical category.