SN4 ""

No	Pattern	Freq
1	[conj] it become a [adj]	58
2	[subord] it become a [adj]	36
3	[adv] it become a [adj]	17
4	that it become a [adj]	14
5	that it become a [adj]	14
6	[that] it become a [adj]	14
7	[noun] it become a [adj]	12
8	[adv] it become a [adj]	12
9	before it become a [adj]	8
10	[noun sg] it become a [adj]	8
11	[coord] it become a [adj]	8
12	before it become a [adj]	8
13	[verb] it become a [adj]	7
14	when it become a [adj]	6
15	until it become a [adj]	6
16	until it become a [adj]	6
17	when it become a [adj]	6
18	and it become a [adj]	5
19	if it become a [adj]	5
20	and it become a [adj]	5
21	if it become a [adj]	5
22	it [verb] become a [adj]	74
23	it have become a [adj]	70
24	it [vb -s] become a [adj]	46
25	it [vb mod] become a [adj]	43
26	it has become a [adj]	43
27	it [modal v] become a [adj]	43
28	it [be] become a [adj]	28
29	it be become a [adj]	28
30	it [vb past] become a [adj]	27