Misconstruing Metaphors Of Mood

Martin (1992: 413):

Table 6.19. Congruent and metaphorical realisations of interpersonal meanings [3]
mood
proposition:
congruent	statement	declarative	He’s here
	question	interrogative	Is he here?
metaphorical	statement	probability	It may be that…
	question	usuality	It is usual that…
	statement	projection	I reckon…
	question	projection	Don’t you think…

Blogger Comments:

[1] Interpersonal metaphors of mood involve

• a speech function (semantics) being realised by a projecting clause (grammar), as in I urge you to… or 
• a speech function (semantics) being realised by an incongruent mood choice (grammar), as when a command is realised by indicative instead of imperative mood; see Halliday & Matthiessen (2004: 626-35).

[2] Interpersonal metaphors involving probability and usuality are metaphors of modality, not metaphors of mood.

[3] This instance of modality combines the congruent grammatical realisation (implicit subjective may) with the metaphorical (explicit objective it's x that).

[4] This is a metaphorical grammatical realisation of modality (modalisation: usuality; explicit objective orientation).

[5] This is a metaphorical grammatical realisation of modality (modalisation: probability; explicit subjective orientation).