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The Verb: Mood
g ular (i. e. of the speaker himself) to commit an action, or (2) an appeal to the 1st person plural, that is to one or more interlocutors to commit an action together with the speaker, or (3) an appeal to the 3rd person (singular or plural) to commit some action.
There is the question whether groups of this structure can or cannot be recognised as analytical forms of the imperative. This question must be answered in the negative for the following reasons. The noun
or pronoun following the verb let stands in an object relation to this verb. This is especially clear with personal pronouns, which are bound to appear in the objective case form:
Let me go (not
I), let him go (not
he), etc. If we were to say that the formation
"let + personal pronoun + infinitive" is a form of the imperative, we should have to accept the conclusion that the subject is expressed by a pronoun in the objective case (the nominative being impossible here), which is obviously unacceptable, as it would run counter to all the principles of English syntactic structure. This formation is therefore not an analytical
form of the imperative mood, and the verb
let not an auxiliary of that mood (or, indeed, of any other grammatical category). Expressions of the type
let me go, let us go, let him go are therefore not in any way morphological phenomena. They belong to syntax. The imperative mood is represented by 2nd person forms only.
It might be argued that, since there are no other persons within
the system of the imperative, the 2nd person is not opposed to any other person and does not therefore exist as a grammatical category. If we take this view we should have to say that there is no category of person at all in the imperative. This view is quite defensible, provided we take the system of the imperative as something existing in its own right and not within the wider framework of the verb system as a whole. If, on the other hand, we do place it in this wider framework we shall recognise that the form
come (!) bears the same reference to person as the form
(you) come (!) and we shall not deny it the right to be called a 2nd person form. Here, indeed, the decision arrived at will depend on the view we take of the problem on a wider scale.
MOOD AND TENSE
We have already discussed some relations between mood and tense in dealing with such forms as
lived, knew, and such forms as
should come, would come.
There are, however, some other problems in this field, which we have not so far touched upon.
First of all, there is the use of the future tense to denote an action referring to the present and considered as probable (not