SN4 ""

No	Pattern	Freq
1	have become [art] [adj]	1099
2	have become [art] [adj]	970
3	have become a [adj]	603
4	has become [art] [adj]	566
5	had become [art] [adj]	356
6	have become the [adj]	297
7	have become an [adj]	203
8	have become [art] [adj]	111
9	have become [art] [num ord]	78
10	have become [art] first	60
11	have become [art] first	60
12	have become [art] major	58
13	have become [art] major	58
14	have become [art] [adj -est]	41
15	have become [art] [adj]	33
16	have become [art] important	32
17	have become [art] important	32
18	to have become [art] [adj]	24
19	have become [art] regular	17
20	have become [art] regular	17
21	have become [art] political	16
22	have become [art] political	16
23	have become [art] big	15
24	have become [art] dominant	13
25	have become [art] new	13
26	have become [art] new	13
27	have become [art] large	13
28	have become [art] dominant	13
29	have become [art] popular	13
30	have become [art] popular	13