SN4 ""

No	Pattern	Freq
1	[vb mod] have had	2297
2	[modal v] have had	2297
3	would have had	880
4	would have had	762
5	[adv] have had	500
6	may have had	328
7	may have had	328
8	must have had	299
9	must have had	299
10	[adv] have had	263
11	might have had	253
12	might have had	253
13	[not/n't] have had	237
14	not have had	237
15	could have had	225
16	could have had	225
17	should have had	204
18	should have had	204
19	not have had	130
20	'd have had	118
21	n't have had	107
22	will have had	96
23	will have had	78
24	well have had	47
25	well have had	47
26	never have had	32
27	never have had	32
28	[pers pn] have had	30
29	[pron] have had	30
30	also have had	23