SN4 ""

No	Pattern	Freq
1	[noun] prevent they from	56
2	[noun pl] prevent they from	29
3	[noun sg] prevent they from	26
4	[pron] prevent they from	25
5	[conj] prevent they from	22
6	[adv] prevent they from	22
7	[Wh det] prevent they from	18
8	[vb mod] prevent they from	18
9	[modal v] prevent they from	18
10	which prevent they from	18
11	which prevent they from	18
12	[verb] prevent they from	17
13	[coord] prevent they from	14
14	and prevent they from	13
15	and prevent they from	13
16	[adv] prevent they from	12
17	not prevent they from	10
18	not prevent they from	10
19	[not/n't] prevent they from	10
20	be prevent they from	8
21	[be] prevent they from	8
22	[vb pp] prevent they from	7
23	[that] prevent they from	7
24	that prevent they from	7
25	that prevent they from	7
26	[adj] prevent they from	6
27	have prevent they from	6
28	would prevent they from	6
29	would prevent they from	6
30	order prevent they from	6