SN4 ""

No	Pattern	Freq
1	[conj] [pers pn] become necessary	27
2	[subord] [pers pn] become necessary	20
3	when [pers pn] become necessary	9
4	when [pers pn] become necessary	9
5	if [pers pn] become necessary	8
6	if [pers pn] become necessary	8
7	[adv] [pers pn] become necessary	7
8	[adv] [pers pn] become necessary	6
9	and [pers pn] become necessary	5
10	and [pers pn] become necessary	5
11	[coord] [pers pn] become necessary	5
12	[pers pn] [vb mod] become necessary	15
13	[pers pn] [modal v] become necessary	15
14	[pers pn] [verb] become necessary	12
15	[pers pn] have become necessary	12
16	[pers pn] [adv] become necessary	10
17	[pers pn] [adv] become necessary	10
18	[pers pn] may become necessary	9
19	[pers pn] may become necessary	9
20	[pers pn] [vb past] become necessary	7
21	[pers pn] had become necessary	7
22	[pers pn] become necessary [verb]	41
23	[pers pn] become necessary [to-vb]	41
24	[pers pn] become necessary [prep]	9
25	[pers pn] become necessary [prep]	9
26	[pers pn] become necessary for	6
27	[pers pn] become necessary for	6