SN4 ""

No	Pattern	Freq
1	[conj] they have done	314
2	[subord] they have done	201
3	[pron] they have done	185
4	[Wh det] they have done	173
5	what they have done	161
6	what they have done	161
7	as they have done	92
8	as they have done	92
9	that they have done	73
10	that they have done	73
11	[that] they have done	73
12	[noun] they have done	66
13	[adv] they have done	55
14	[noun sg] they have done	53
15	[verb] they have done	49
16	[coord] they have done	40
17	[adv] they have done	29
18	and they have done	25
19	and they have done	25
20	[adj] they have done	24
21	[Wh adv] they have done	21
22	[det] they have done	21
23	if they have done	20
24	if they have done	20
25	[vb base] they have done	20
26	all they have done	18
27	all they have done	18
28	than they have done	15
29	than they have done	15
30	when they have done	15