SN4 ""

No	Pattern	Freq
1	which had [vb pp] [prep]	1031
2	which has [vb pp] [prep]	559
3	which have [vb pp] in	469
4	which have [vb pp] [prep]	432
5	which have [vb pp] to	420
6	which have [vb pp] from	201
7	which have led [prep]	164
8	which have come [prep]	120
9	which have [vb pp] into	116
10	which have [vb pp] on	115
11	which have [vb pp] for	104
12	which have resulted [prep]	93
13	which have occurred [prep]	77
14	which have begun [prep]	77
15	which have [vb pp] with	76
16	which have emerged [prep]	74
17	which have [vb pp] at	71
18	which have developed [prep]	67
19	which have [vb pp] over	58
20	which have existed [prep]	49
21	which have gone [prep]	49
22	which have [vb pp] since	48
23	which have [vb pp] as	43
24	which have appeared [prep]	41
25	which have [vb pp] through	40
26	which have arisen [prep]	38
27	which have fallen [prep]	36
28	which have [vb pp] by	32
29	which have [vb pp] during	28
30	which have [vb pp] between	26