SN4 ""

No	Pattern	Freq
1	known [to-vb]	1145
2	known have	438
3	known to have	416
4	known exist	49
5	known to exist	39
6	known [vb past]	36
7	known cause	26
8	known to cause	26
9	known [vb base]	22
10	known contain	15
11	known to contain	15
12	known occur	15
13	known to occur	14
14	known to affect	14
15	known to take	14
16	known affect	14
17	known take	14
18	known had	13
19	known favour	13
20	known to favour	13
21	known [v-ing]	13
22	known use	12
23	known to produce	12
24	known produce	12
25	known to use	12
26	known influence	11
27	known to influence	11
28	known do	11
29	known existed	10
30	known to happen	10