SN4 ""

No	Pattern	Freq
1	[modal v] [adv] have seen	114
2	[vb mod] [adv] have seen	114
3	would [adv] have seen	39
4	would [adv] have seen	37
5	may [adv] have seen	24
6	may [adv] have seen	24
7	will [adv] have seen	14
8	might [adv] have seen	12
9	could [adv] have seen	12
10	could [adv] have seen	12
11	will [adv] have seen	12
12	might [adv] have seen	12
13	[adv] [adv] have seen	8
14	not [adv] have seen	6
15	[not/n't] [adv] have seen	6
16	should [adv] have seen	5
17	can [adv] have seen	5
18	should [adv] have seen	5
19	[adv] [modal v] have seen	11
20	[adv] [vb mod] have seen	11
21	[adv] [adv] have seen	8
22	[adv] [adv] have seen	7
23	[adv] have be seen	10
24	[adv] have [be] seen	10
25	[adv] have been seen	10
26	[adv] have [been] seen	10
27	[adv] have seen [pron]	36
28	[adv] have seen [art]	33
29	[adv] have seen [art]	33
30	[adv] have seen [pers pn]	25