SN4 ""

No	Pattern	Freq
1	[noun] to ensure [art]	426
2	[noun sg] to ensure [art]	293
3	[verb] to ensure [art]	204
4	[noun pl] to ensure [art]	117
5	[adj] to ensure [art]	104
6	[vb pp] to ensure [art]	100
7	[adj] to ensure [art]	79
8	[adv] to ensure [art]	59
9	[be] to ensure [art]	52
10	be to ensure [art]	52
11	[adv] to ensure [art]	44
12	order to ensure [art]	43
13	order to ensure [art]	42
14	[conj] to ensure [art]	38
15	is to ensure [art]	28
16	[is] to ensure [art]	28
17	[vb base] to ensure [art]	26
18	[coord] to ensure [art]	26
19	necessary to ensure [art]	25
20	necessary to ensure [art]	25
21	and to ensure [art]	23
22	and to ensure [art]	23
23	[vb past] to ensure [art]	21
24	[vb -s] to ensure [art]	19
25	[was/were] to ensure [art]	18
26	[v-ing] to ensure [art]	18
27	help to ensure [art]	17
28	way to ensure [art]	15
29	was to ensure [art]	15
30	[vb infin] to ensure [art]	14