SN4 ""

No	Pattern	Freq
1	[noun] which become [adv]	60
2	[noun sg] which become [adv]	40
3	[noun pl] which become [adv]	20
4	which [verb] become [adv]	77
5	which have become [adv]	76
6	which be become [adv]	43
7	which [be] become [adv]	43
8	which [vb past] become [adv]	32
9	which had become [adv]	32
10	which [vb base] become [adv]	27
11	which have become [adv]	26
12	which [modal v] become [adv]	23
13	which [vb mod] become [adv]	23
14	which [vb -s] become [adv]	18
15	which has become [adv]	18
16	which [was/were] become [adv]	17
17	which [adv] become [adv]	15
18	which [adv] become [adv]	15
19	which is become [adv]	13
20	which was become [adv]	13
21	which [pron] become [adv]	13
22	which [am/are] become [adv]	13
23	which [is] become [adv]	13
24	which are become [adv]	13
25	which [pers pn] become [adv]	10
26	which [noun] become [adv]	8
27	which will become [adv]	8
28	which will become [adv]	8
29	which would become [adv]	5
30	which would become [adv]	5