SN4 ""

No	Pattern	Freq
1	it become [adj] [prep]	211
2	it became [adj] [prep]	150
3	it becomes [adj] [prep]	72
4	it become [adj] to	67
5	it become [adj] for	58
6	it become clear [prep]	44
7	it become clear [prep]	43
8	it become [adj] in	33
9	it become [adj] of	21
10	it become [adj] from	17
11	it become possible [prep]	16
12	it become possible [prep]	16
13	it become one [prep]	12
14	it become [num] [prep]	12
15	it become one [prep]	12
16	it become obvious [prep]	10
17	it become obvious [prep]	10
18	it become apparent [prep]	10
19	it become apparent [prep]	10
20	it become necessary [prep]	8
21	it become necessary [prep]	8
22	it become [adj] with	8
23	it become [adj] during	7
24	it become [det] [prep]	7
25	it become impossible [prep]	7
26	it become impossible [prep]	7
27	it become evident [prep]	6
28	it become common [prep]	6
29	it become evident [prep]	6
30	it become common [prep]	6