SN4 ""

No	Pattern	Freq
1	be [verb] to ensure [conj] the [noun]	123
2	[be] [verb] to ensure [that] the [noun]	123
3	[be] [verb] to ensure that the [noun]	123
4	[be] [verb] to ensure that the [noun]	123
5	[be] [vb pp] to ensure [conj] the [noun]	118
6	[be] [verb] to ensure [conj] the [noun sg]	85
7	be [verb] to ensure [conj] the [noun]	62
8	[be] [verb] to ensure [conj] the [noun]	62
9	[be] [verb] to ensure [conj] the [noun pl]	32
10	[be] taken to ensure [conj] the [noun]	28
11	[be] take to ensure [conj] the [noun]	28
12	are [verb] to ensure [conj] the [noun]	18
13	is [verb] to ensure [conj] the [noun]	18
14	[am/are] [verb] to ensure [conj] the [noun]	18
15	[is] [verb] to ensure [conj] the [noun]	18
16	[was/were] [verb] to ensure [conj] the [noun]	17
17	[be] made to ensure [conj] the [noun]	11
18	[be] make to ensure [conj] the [noun]	11
19	[be] designed to ensure [conj] the [noun]	9
20	was [verb] to ensure [conj] the [noun]	9
21	[be] design to ensure [conj] the [noun]	9
22	[be] needed to ensure [conj] the [noun]	8
23	[be] need to ensure [conj] the [noun]	8
24	were [verb] to ensure [conj] the [noun]	8
25	[be] do to ensure [conj] the [noun]	7
26	[be] done to ensure [conj] the [noun]	6
27	been [verb] to ensure [conj] the [noun]	6
28	[been] [verb] to ensure [conj] the [noun]	6
29	[be] required to ensure [conj] the [noun]	5
30	[be] require to ensure [conj] the [noun]	5