SN4 ""

No	Pattern	Freq
1	[verb] been subject to	131
2	have been subject to	131
3	has been subject to	43
4	[vb -s] been subject to	43
5	[vb past] been subject to	41
6	had been subject to	39
7	[vb base] been subject to	31
8	have been subject to	29
9	[adv] been subject to	27
10	[adv] been subject to	16
11	not been subject to	11
12	not been subject to	11
13	[not/n't] been subject to	11
14	[vb infin] been subject to	6
15	having been subject to	6
16	[v-ing] been subject to	6
17	have been subject to	6
18	been subject to [adj]	77
19	been subject to [adj]	66
20	been subject to [art]	50
21	been subject to [art]	50
22	been subject to a	30
23	been subject to a	24
24	been subject to the	19
25	been subject to the	19
26	been subject to [noun]	18
27	been subject to [noun sg]	12
28	been subject to [adv]	11
29	been subject to [adv]	11
30	been subject to [det]	10