SN4 ""

No	Pattern	Freq
1	which [verb] to	4804
2	which [verb] to	4804
3	which [vb past] to	1885
4	which [vb -s] to	1592
5	which [vb base] to	1270
6	which lead to	870
7	which led to	593
8	which have to	476
9	which seem to	285
10	which need to	269
11	which relate to	238
12	which leads to	191
13	which come to	184
14	which had to	183
15	which apply to	173
16	which belong to	172
17	which appear to	163
18	which has to	163
19	which need to	156
20	which refer to	137
21	which contribute to	135
22	which came to	133
23	which relate to	132
24	which have to	130
25	which correspond to	118
26	which amount to	116
27	which seems to	111
28	which seemed to	107
29	which go to	95
30	which apply to	94