SN4 ""

No	Pattern	Freq
1	[noun] is done	497
2	[noun sg] is done	472
3	[adj] is done	394
4	[det] is done	380
5	this is done	327
6	this is done	327
7	[pron] is done	248
8	[pers pn] is done	112
9	it is done	109
10	it is done	105
11	work is done	85
12	work is done	85
13	[Wh det] is done	71
14	[indef pn] is done	62
15	what is done	47
16	what is done	47
17	[verb] is done	40
18	[conj] is done	37
19	that is done	35
20	that is done	35
21	damage is done	31
22	damage is done	31
23	job is done	24
24	job is done	24
25	nothing is done	21
26	which is done	21
27	something is done	21
28	something is done	21
29	nothing is done	21
30	which is done	21