SN4 ""

No	Pattern	Freq
1	[noun] have become [art]	1300
2	[noun sg] have become [art]	779
3	[pron] have become [art]	658
4	[pers pn] have become [art]	477
5	[noun prp] have become [art]	319
6	it have become [art]	223
7	it have become [art]	223
8	[noun pl] have become [art]	192
9	[Wh det] have become [art]	128
10	he have become [art]	116
11	he have become [art]	115
12	[conj] have become [art]	97
13	which have become [art]	90
14	which have become [art]	90
15	[modal v] have become [art]	70
16	[vb mod] have become [art]	70
17	[adj] have become [art]	66
18	[coord] have become [art]	66
19	[adv] have become [art]	55
20	and have become [art]	52
21	and have become [art]	52
22	[verb] have become [art]	50
23	she have become [art]	44
24	she have become [art]	44
25	[adv] have become [art]	41
26	who have become [art]	39
27	[Wh pn] have become [art]	39
28	who have become [art]	39
29	what have become [art]	38
30	what have become [art]	38