102
The Verb: Mood
M eaning alone may not seem sufficient ground for establishing a grammatical category. Thus, no fully convincing solution of the problem has yet been found.
THE OTHER MOODS
Now we come to a very difficult set of problems, namely those connected with the subjunctive, conditional, or whatever other name we may choose to give these moods.
The chief difficulty analysis has to face here is the absence of a straightforward mutual relation between meaning and form. Sometimes the same external series of signs will have two (or more) different meanings depending on factors lying outside the form itself, and outside the meaning of the verb; sometimes, again, the same modal meaning will be expressed by two different series of external signs.
The first of these two points may be
illustrated by the sequence we should come, which means one thing in the sentence
I think we should come here again to-morrow (here
we should come is equivalent to
we ought to come); it means another thing in the sentence
If we knew that he wants us we should come to see him (here
we should come denotes
a conditional action, i. e. an action depending on certain conditions), and it means another thing again in the sentence
How queer that we should come at the very moment when you were talking about us! (here
we should come denotes an action which has actually taken place and which is considered as an object for comment). In a similar way, several meanings may be found in the sequence
he would come in different contexts.
The second of the two points may be illustrated
by comparing the two sentences, I suggest that he go and
I suggest that he should go, and we will for the present neglect the fact that the first of the two variants is more typical of American, and the second of British English.
It is quite clear, then, that we shall arrive at different systems of English moods, according as we make our classification depend on the meaning (in that case one
should come will find
its place under one heading, and the other
should come under another, whereas
(he) go and
(he) should go will find their place under the same heading) or on form (in that case
he should come will fall under one heading, no matter in what context it may be used, while
(he) go and
(he) should go will fall under different headings).
This difficulty appears to be one of the main sources of that wide divergence of views which strikes every reader of English grammars when he reaches the chapter on moods.