SN4 ""

No	Pattern	Freq
1	[noun pl] have [vb pp] at	117
2	[noun pl] had [vb pp] at	115
3	[noun pl] has [vb pp] at	20
4	[noun pl] have arrived at	18
5	[noun pl] have looked at	16
6	[noun pl] have appeared at	8
7	[noun pl] have worked at	7
8	studies have [vb pp] at	6
9	others have [vb pp] at	6
10	troops have [vb pp] at	6
11	[noun pl] have risen at	6
12	women have [vb pp] at	6
13	[noun pl] have changed at	6
14	[noun pl] have died at	6
15	[noun pl] have killed at	5
16	[noun pl] have occurred at	5