SN4 ""

No	Pattern	Freq
1	has [adv] become [art] [noun]	78
2	has [adv] become [art] [noun]	72
3	has [adv] become [art] [noun]	71
4	has [adv] become [art] [noun sg]	70
5	has [adv] become a [noun]	60
6	has [adv] become a [noun]	48
7	has now become [art] [noun]	19
8	has now become [art] [noun]	19
9	has [adv] become the [noun]	18
10	has [adv] become the [noun]	18
11	has [adv] become an [noun]	12
12	has recently become [art] [noun]	9
13	has recently become [art] [noun]	9
14	has since become [art] [noun]	8
15	has since become [art] [noun]	8
16	has not become [art] [noun]	6
17	has [adv] become [art] [noun]	6
18	has [not/n't] become [art] [noun]	6
19	has not become [art] [noun]	6
20	has also become [art] [noun]	5
21	has increasingly become [art] [noun]	5
22	has increasingly become [art] [noun]	5
23	has also become [art] [noun]	5