SN4 ""

No	Pattern	Freq
1	should [adv] have [verb]	1009
2	should [adv] have [vb pp]	901
3	should not have [verb]	698
4	should [not/n't] have [verb]	698
5	should n't have [verb]	474
6	should [adv] have [verb]	317
7	should not have [verb]	224
8	should never have [verb]	169
9	should never have [verb]	169
10	should [adv] have [to-vb]	110
11	should [adv] have do	81
12	should [adv] have done	77
13	should [adv] have said	67
14	should [adv] have say	67
15	should [adv] have come	52
16	should [adv] have come	52
17	should [adv] have had	37
18	should [adv] have have	37
19	should [adv] have let	34
20	should [adv] have let	34
21	should [adv] have go	31
22	should [adv] have take	29
23	should [adv] have happened	27
24	should [adv] have happen	27
25	should [adv] have gone	26
26	should [adv] have taken	25
27	should [adv] have leave	24
28	should [adv] have left	23
29	should also have [verb]	22
30	should also have [verb]	22