SN4 ""

No	Pattern	Freq
1	it becomes [adj] [to-vb]	114
2	it becomes possible [to-vb]	37
3	it becomes possible [to-vb]	37
4	it becomes difficult [to-vb]	20
5	it becomes difficult [to-vb]	20
6	it becomes necessary [to-vb]	17
7	it becomes necessary [to-vb]	17
8	it becomes [adj -er] [to-vb]	14
9	it becomes easy [to-vb]	11
10	it becomes easier [to-vb]	10
11	it becomes impossible [to-vb]	9
12	it becomes impossible [to-vb]	9
13	it becomes hard [to-vb]	8
14	it becomes important [to-vb]	7
15	it becomes important [to-vb]	7
16	it becomes [adj] to say	7
17	it becomes [adj] to see	5