SN4 ""

No	Pattern	Freq
1	necessary [to-vb] [det] [noun]	200
2	necessary [verb] [det] [noun sg]	136
3	necessary [verb] [det] [noun pl]	60
4	necessary [verb] this [noun]	43
5	necessary [verb] some [noun]	31
6	necessary [verb] that [noun]	26
7	necessary [verb] these [noun]	23
8	necessary [verb] any [noun]	19
9	necessary [verb] such [noun]	17
10	necessary make [det] [noun]	10
11	necessary [verb] each [noun]	10
12	necessary to make [det] [noun]	10
13	necessary [verb] all [noun]	9
14	necessary understand [det] [noun]	7
15	necessary to understand [det] [noun]	7
16	necessary [verb] [det] statement	7
17	necessary achieve [det] [noun]	7
18	necessary to achieve [det] [noun]	7
19	necessary [verb] another [noun]	6
20	necessary provide [det] [noun]	6
21	necessary [verb] [det] statements	6
22	necessary give [det] [noun]	6
23	necessary to give [det] [noun]	6
24	necessary have [det] [noun]	6
25	necessary to provide [det] [noun]	6
26	necessary [verb] [det] [n mass]	6
27	necessary [verb] those [noun]	5
28	necessary to examine [det] [noun]	5
29	necessary [verb] [det] sort	5
30	necessary [verb] more [noun]	5