SN4 ""

No	Pattern	Freq
1	they might [adv] have [verb]	68
2	they might [adv] have [verb]	68
3	they might [adv] have [verb]	67
4	they might [adv] have [vb pp]	64
5	they might [adv] have [verb]	47
6	they might [not/n't] have [verb]	21
7	they might not have [verb]	21
8	they might not have [verb]	20
9	they might well have [verb]	14
10	they might well have [verb]	14
11	they might [adv] have done	10
12	they might [adv] have do	10
13	they might [adv] have have	7
14	they might [adv] have had	7
15	they might otherwise have [verb]	6
16	they might otherwise have [verb]	6
17	they might also have [verb]	5
18	they might even have [verb]	5
19	they might even have [verb]	5
20	they might also have [verb]	5