SN4 ""

No	Pattern	Freq
1	prevent they [prep] [v-ing]	170
2	prevent them [prep] [verb]	170
3	prevent they from [verb]	169
4	to prevent they [prep] [verb]	41
5	preventing they [prep] [verb]	29
6	prevent they [prep] [verb]	28
7	prevent they [prep] [verb]	25
8	prevented they [prep] [verb]	21
9	prevents they [prep] [verb]	19
10	prevent they [prep] become	10
11	prevent they [prep] becoming	10
12	prevent they [prep] take	8
13	prevent they [prep] taking	8
14	prevented they [prep] [verb]	7
15	prevent they [prep] doing	7
16	prevent they [prep] do	7
17	prevent they [prep] get	6
18	prevent they [prep] getting	6
19	prevent they [prep] go	5
20	prevent they [prep] working	5
21	prevent they [prep] work	5
22	prevent they [prep] going	5