Grammatical functions	No.	Iteams	ASD	DS	ID	TD
			ASD	DS	ID	4 years	5 years	6 years
			(n = 11)	(n = 16)	(n = 10)	(n = 16)	(n = 19)	(n = 23)
the number of components	1	nouns	100.0	100.0	100.0	100.0	100.0	100.0
	2	adjectives	100.0	100.0	100.0	100.0	100.0	100.0
	3	verbs	100.0	100.0	100.0	100.0	100.0	100.0
	4	two-factor combining sentences	100.0	100.0	100.0	100.0	100.0	100.0
	5	negative sentences	100.0	87.5	100.0	100.0	100.0	100.0
	6	three-factor combining sentences	100.0	93.8	100.0	93.8	100.0	100.0
	10	sentences combining multiple-factors	45.5	31.3	50.0	31.3	73.7	87.0
perspectives	7	reversible sentences	100.0	62.5	80.0	81.3	100.0	100.0
perspectives	14	passive sentences	36.4	12.5	10.0	25.0	36.8	56.5
conjunction particles	8	not X but also Y	63.6	37.5	30.0	68.8	63.2	91.3
	9	X, but Y is different	45.5	25.0	40.0	31.3	63.2	73.9
	11	both X and Y are different	18.2	18.8	20.0	31.3	36.8	56.5
particle strategies	12	position words	36.4	12.5	10.0	37.5	57.9	73.9
	15	comparative expressions	18.2	0.0	0.0	18.8	31.6	60.9
	19	nominative particle	0.0	0.0	10.0	6.3	15.8	34.8
sentence structures	13	subject modifier (left-branching)	9.1	6.3	10.0	18.8	47.4	52.2
	17	predicate modifiers	0.0	0.0	0.0	0.0	15.8	39.1
	20	subject modifier (center-embedded sentences)	0.0	0.0	0.0	0.0	0.0	0.0
numerical expressions	16	numeral	63.6	12.5	0.0	0.0	5.3	39.1
numerical expressions	18	plural form	63.6	12.5	20.0	18.8	10.5	69.6
The average number of passed items			11.0	8.1	8.8	9.6	11.6	14.3
(SD)			(2.0)	(2.0)	(1.6)	(2.5)	(2.3)	(3.1)