SN4 ""

No	Pattern	Freq
1	should have [vb pp]	3963
2	should have do	254
3	should have done	250
4	should have have	208
5	should have know	205
6	should have had	204
7	should have known	202
8	should have [to-vb]	149
9	should have go	147
10	should have think	147
11	should have thought	146
12	should have gone	141
13	should have said	114
14	should have say	114
15	should have seen	112
16	should have see	112
17	should have tell	105
18	should have told	104
19	should have make	103
20	should have made	99
21	should have take	94
22	should have taken	87
23	should have come	71
24	should have come	70
25	should have get	62
26	should have won	61
27	should have win	61
28	should have got	57
29	should have give	47
30	should have realised	46