SN4 ""

No	Pattern	Freq
1	[adj] [noun pl] have a role	9
2	[adj] [noun pl] have a role	7
3	[conj] [noun pl] have a role	5
4	[noun pl] [modal v] have a role	6
5	[noun pl] [vb mod] have a role	6
6	[noun pl] have [verb] a role	6
7	[noun pl] have [vb pp] a role	6
8	[noun pl] have a [adj] role	51
9	[noun pl] have a [adj] role	50
10	[noun pl] have a vital role	10
11	[noun pl] have a vital role	10
12	[noun pl] have a major role	5
13	[noun pl] have a key role	5
14	[noun pl] have a major role	5
15	[noun pl] have a key role	5
16	[noun pl] have a role [verb]	17
17	[noun pl] have a role to play	17
18	[noun pl] have a role play	17
19	[noun pl] have a role [to-vb]	17
20	[noun pl] have a role [prep]	10
21	[noun pl] have a role [prep]	10
22	[noun pl] have a role in	10
23	[noun pl] have a role in	10