SN4 ""

No	Pattern	Freq
1	have become the [noun sg]	281
2	has become the [noun]	128
3	had become the [noun]	119
4	have become the [noun]	43
5	have become the focus	21
6	have become the focus	21
7	have become the [noun prp]	15
8	have become the [noun pl]	15
9	have become the world	13
10	have become the world	13
11	have become the [noun]	12
12	have become the subject	8
13	have become the norm	8
14	have become the norm	8
15	have become the subject	8
16	have become the centre	7
17	have become the centre	7
18	have become the object	6
19	have become the object	6
20	have become the symbol	6
21	have become the symbol	6
22	have become the victim	5
23	have become the target	5
24	to have become the [noun]	5