Non-finite forms of the verb

Future

• Words and expressions used to speak about future

Modal verbs		Expressions
Will, shall	To speak about something unplanned, spontaneous, but highly probable	To be going to	to speak about an intention to do smth. in near future
May	To speak about not so probable future possibilities	To be doing	To speak about planned future
might	To speak about future possibilities with quite low degree of probability	To be about to	To speak about something what is going to happen very soon and with high degree of probability
		To be on the brink of, to be on the verge of	To speak about something what is going to happen very soon and with very high degree of probability

MOOD

• Mood is one of the kinds of modality, which may be expressed both by lexical means (modal verbs (may, can, must, etc.) and modal words (perhaps, probably, etc.)).
• The category of mood presents the interpretation of the action by the speaker from the point of view of its relation to reality.

• Most of Russian grammarians distinguish three moods in Modern English. It is a traditional division.

• Indicative expressing real facts.
• Imperative expressing command, order, request.
• Subjunctive expressing something desirable, problematic, unreal etc