SN4 ""

No	Pattern	Freq
1	have become an [noun]	103
2	[verb] become an [noun]	103
3	had become an [noun]	42
4	[vb past] become an [noun]	42
5	[vb -s] become an [noun]	41
6	has become an [noun]	40
7	[vb base] become an [noun]	11
8	have become an [noun]	8
9	[adv] become an [noun]	5
10	[not/n't] become an [noun]	5
11	not become an [noun]	5
12	not become an [noun]	5
13	become an [adj] [noun]	175
14	become an [adj] [noun]	174
15	become an important [noun]	26
16	become an important [noun]	26
17	become an [noun] [noun]	12
18	become an [noun sg] [noun]	12
19	become an integral [noun]	10
20	become an integral [noun]	10
21	become an established [noun]	8
22	become an established [noun]	8
23	become an accepted [noun]	7
24	become an international [noun]	7
25	become an accepted [noun]	7
26	become an international [noun]	7
27	become an essential [noun]	6
28	become an essential [noun]	6
29	become an [noun] [prep]	55
30	become an [noun] [prep]	55