System Mood of Grammar
A proposition is something that can be argued in particular way. When there is an information exchange, it means arguing whether something IS or IS NOT.
Modalization is always expressing the implicit judgment of the speaker because it is the way the speaker getting into the text expressing a judgment about
certainty, likelihood, or frequency of something happening or being. The expressions of modalization can cover mood adjunct and modal auxiliaries.
Modalization involves the expression of probability and usuality. Modalization involves the expressions of i probability and ii usuallity. Eggins 1994:179
argues that probability is where the speaker expresses judgments as to the likelihood or porbability of something happening or being. Usuality is where the
speaker expresses judgments as to the frequency with which something happen. a
Probability It occurs when there is an expression of judgments to the likelihood or
probability of something happens. Eggins 1997:100 ranges the degrees of probability from
“high” which means almost certain to “low” that means very
uncertain it can be. It can be illustrated as follows.
Table 02: The Degree of Probability Expression
Degree
He eats two apples. positive polarity
He must definetely eats two apples. modalized: high probability
He may perhaps eats two apples. modalized: medium probability
He might possibly eats two apples. modalized: low probability
Source: Eggins 1997:100 b
Usuality It occurs when there is an expression of judgments to the frequency of
something happens. Eggins 1997: 102 ranges the degree of usuality from “high” that means always done to “low” which means never done or almost
never done. It can be illustrated as follows.
Table 03: The Degree of Usuallity Expression
Degree
He plays badminton. positive polarity
He always plays badminton. modalized: high usuallity
He usually plays badminton. modalized: medium usuallity
He sometimes plays badminton. modalized: low usuallity
Source: Eggins 1997:102 Both probability and usuallity can be expressed in some three ways:
I. By a finite modal operator in the verbal group
That will be my car. II.
By a modal adjunct of probability or usuallity That is probably my car.
III. By both together
That will probably my car.