SN4 ""

No	Pattern	Freq
1	have been cause by	191
2	[verb] been cause by	191
3	[vb past] been cause by	58
4	had been cause by	58
5	[vb infin] been cause by	50
6	have been cause by	50
7	[vb -s] been cause by	39
8	has been cause by	38
9	to have been cause by	31
10	[to-vb] been cause by	31
11	[vb base] been cause by	13
12	have been cause by	13
13	[adv] been cause by	12
14	[adv] been cause by	9
15	been cause [adv] by	7
16	been cause [adv] by	7
17	been cause by [art]	105
18	been cause by [art]	105
19	been cause by the	62
20	been cause by the	62
21	been cause by [noun]	50
22	been cause by a	43
23	been cause by [adj]	38
24	been cause by a	34
25	been cause by [noun sg]	27
26	been cause by [adj]	25
27	been cause by [noun pl]	15
28	been cause by an	9
29	been cause by [det]	9
30	been cause by [pron]	6