SN4 ""

No	Pattern	Freq
1	[noun] have become a [adj] [noun]	351
2	[noun] have become a [adj] [noun sg]	348
3	[noun] have become a [adj] [noun]	345
4	[noun] have become a [adj] [noun]	255
5	[noun sg] have become a [adj] [noun]	212
6	[noun] has become a [adj] [noun]	197
7	[noun] had become a [adj] [noun]	116
8	[noun] have become an [adj] [noun]	97
9	[noun prp] have become a [adj] [noun]	76
10	[noun pl] have become a [adj] [noun]	61
11	[noun] have become a [adj] [noun]	36
12	[noun] have become a [adj] part	30
13	[noun] have become a [adj] part	30
14	[noun] have become a major [noun]	26
15	[noun] have become a major [noun]	26
16	[noun] have become a important [noun]	15
17	[noun] have become a important [noun]	15
18	[noun] have become a [adj] issue	15
19	[noun] have become a [adj] issue	15
20	[noun] have become a [adj] feature	12
21	[noun] have become a [adj] feature	12
22	[noun] have become a [adj] problem	9
23	[noun] have become a popular [noun]	9
24	[noun] have become a [adj] problem	9
25	[noun] have become a popular [noun]	9
26	[noun] have become a regular [noun]	8
27	[noun] have become a regular [noun]	8
28	[noun] have become a integral [noun]	7
29	[noun] have become a integral [noun]	7
30	[noun] have become a central [noun]	7