SN4 ""

No	Pattern	Freq
1	[vb mod] have [vb pp] at	359
2	would have [vb pp] at	116
3	must have [vb pp] at	56
4	should have [vb pp] at	49
5	could have [vb pp] at	48
6	might have [vb pp] at	38
7	[vb mod] have looked at	31
8	may have [vb pp] at	29
9	[vb mod] have laughed at	18
10	[vb mod] have stayed at	17
11	will have [vb pp] at	17
12	[vb mod] have arrived at	15
13	[vb mod] have happened at	12
14	[vb mod] have done at	11
15	'd have [vb pp] at	11
16	[vb mod] have had at	10
17	[vb mod] have guessed at	9
18	[vb mod] have felt at	8
19	[vb mod] have come at	8
20	[vb mod] 've [vb pp] at	7
21	[vb mod] have jumped at	7
22	[vb mod] have started at	6
23	[vb mod] have said at	5
24	[vb mod] have occurred at	5
25	[vb mod] have seemed at	5