SN4 ""

No	Pattern	Freq
1	might [adv] have [verb]	905
2	might [adv] have [verb]	904
3	might [adv] have [vb pp]	868
4	might [adv] have [verb]	671
5	might not have [verb]	234
6	might [not/n't] have [verb]	234
7	might not have [verb]	229
8	might well have [verb]	210
9	might well have [verb]	210
10	might never have [verb]	69
11	might otherwise have [verb]	69
12	might otherwise have [verb]	69
13	might never have [verb]	69
14	might [adv] have do	54
15	might even have [verb]	52
16	might even have [verb]	52
17	might [adv] have done	50
18	might also have [verb]	48
19	might also have [verb]	48
20	might [adv] have have	46
21	might [adv] have had	45
22	might [adv] have [to-vb]	36
23	might just have [verb]	33
24	might just have [verb]	33
25	might easily have [verb]	33
26	might easily have [verb]	33
27	might [adv] have come	24
28	might [adv] have come	24
29	might [adv] have go	23
30	might [adv] have get	20