SN4 ""

No	Pattern	Freq
1	[prep] which to be	26
2	[prep] which to be	26
3	of which to be	8
4	of which to be	8
5	in which to be	7
6	in which to be	7
7	for which to be	5
8	for which to be	5
9	which [verb] to be	1419
10	which [be] to be	604
11	which be to be	604
12	which [vb -s] to be	497
13	which [vb past] to be	474
14	which have to be	465
15	which [vb base] to be	448
16	which need to be	268
17	which [was/were] to be	267
18	which was to be	200
19	which is to be	198
20	which [is] to be	198
21	which seem to be	188
22	which had to be	177
23	which has to be	158
24	which need to be	155
25	which are to be	139
26	which [am/are] to be	139
27	which appear to be	137
28	which have to be	130
29	which [vb mod] to be	130
30	which [modal v] to be	130