SN4 ""

No	Pattern	Freq
1	which [verb] to	4804
2	which [vb past] to	1885
3	which [vb -s] to	1592
4	which [vb base] to	1270
5	which lead to	870
6	which led to	593
7	which have to	476
8	which seem to	285
9	which need to	269
10	which relate to	238
11	which leads to	191
12	which come to	184
13	which had to	183
14	which apply to	173
15	which belong to	172
16	which appear to	163
17	which has to	163
18	which need to	156
19	which refer to	137
20	which contribute to	135
21	which came to	133
22	which relate to	132
23	which have to	130
24	which correspond to	118
25	which amount to	116
26	which seems to	111
27	which seemed to	107
28	which go to	95
29	which apply to	94
30	which lead to	86