SN4 ""

No	Pattern	Freq
1	[noun] should have [pos pn] [noun]	31
2	[pron] should have [pos pn] [noun]	18
3	[pers pn] should have [pos pn] [noun]	17
4	[noun sg] should have [pos pn] [noun]	14
5	[noun pl] should have [pos pn] [noun]	13
6	should [adv] have [pos pn] [noun]	11
7	should [not/n't] have [pos pn] [noun]	6
8	should not have [pos pn] [noun]	6
9	should [adv] have [pos pn] [noun]	5
10	should [pron] have [pos pn] [noun]	5
11	should not have [pos pn] [noun]	5
12	should [pers pn] have [pos pn] [noun]	5
13	should have [verb] [pos pn] [noun]	150
14	should have [vb pp] [pos pn] [noun]	145
15	should have see [pos pn] [noun]	16
16	should have seen [pos pn] [noun]	16
17	should have been [pos pn] [noun]	13
18	should have [been] [pos pn] [noun]	13
19	should have [be] [pos pn] [noun]	13
20	should have be [pos pn] [noun]	13
21	should have [prep] [pos pn] [noun]	8
22	should have [prep] [pos pn] [noun]	8
23	should have had [pos pn] [noun]	7
24	should have kept [pos pn] [noun]	7
25	should have keep [pos pn] [noun]	7
26	should have have [pos pn] [noun]	7
27	should have taken [pos pn] [noun]	6
28	should have take [pos pn] [noun]	6
29	should have leave [pos pn] [noun]	5
30	should have [to-vb] [pos pn] [noun]	5