SN4 ""

No	Pattern	Freq
1	have become [art] [adj]	963
2	have become a [adj]	588
3	has become [art] [adj]	493
4	had become [art] [adj]	322
5	have become an [adj]	201
6	have become the [adj]	181
7	have become [art] [adj]	93
8	have become [art] major	58
9	have become [art] important	32
10	have become [art] [adj]	25
11	to have become [art] [adj]	22
12	have become [art] regular	17
13	have become [art] political	16
14	have become [art] dominant	13
15	have become [art] popular	13
16	have become [art] new	13
17	have become [art] central	12
18	have become [art] national	12
19	have become [art] main	12
20	have become [art] established	10
21	have become [art] integral	10
22	have become [art] accepted	9
23	have become [art] key	9
24	have become [art] real	9
25	have become [art] big	8
26	have become [art] familiar	8
27	have to become [art] [adj]	7
28	have become [art] significant	7
29	have become [art] common	7
30	have become [art] powerful	7