SN4 ""

No	Pattern	Freq
1	[conj] it become	1066
2	[subord] it become	657
3	[noun] it become	302
4	[adv] it become	301
5	[coord] it become	244
6	[adv] it become	216
7	[noun sg] it become	216
8	when it become	210
9	when it become	210
10	and it become	191
11	and it become	191
12	[that] it become	165
13	that it become	165
14	that it become	165
15	[verb] it become	157
16	[adj] it become	146
17	as it become	124
18	as it become	124
19	[Wh adv] it become	77
20	[noun pl] it become	72
21	before it become	72
22	before it become	72
23	if it become	69
24	if it become	69
25	then it become	67
26	then it become	67
27	until it become	59
28	until it become	59
29	[num] it become	55
30	[prep] it become	54