SN4 ""

No	Pattern	Freq
1	[conj] they have been	772
2	[subord] they have been	509
3	that they have been	154
4	[that] they have been	154
5	that they have been	154
6	[coord] they have been	109
7	if they have been	82
8	if they have been	82
9	because they have been	74
10	because they have been	74
11	and they have been	62
12	and they have been	62
13	as they have been	58
14	as they have been	58
15	after they have been	46
16	after they have been	46
17	but they have been	45
18	but they have been	45
19	once they have been	40
20	once they have been	40
21	where they have been	33
22	where they have been	33
23	than they have been	25
24	than they have been	25
25	when they have been	23
26	when they have been	23
27	until they have been	22
28	until they have been	22
29	although they have been	19
30	though they have been	19