SN4 ""

No	Pattern	Freq
1	[verb] a threat to [noun]	48
2	[prep] a threat to [noun]	41
3	[prep] a threat to [noun]	41
4	as a threat to [noun]	30
5	as a threat to [noun]	30
6	pose a threat to [noun]	27
7	be a threat to [noun]	17
8	[be] a threat to [noun]	17
9	[vb past] a threat to [noun]	13
10	[vb -s] a threat to [noun]	10
11	posed a threat to [noun]	8
12	be a threat to [noun]	8
13	[adv] a threat to [noun]	8
14	[be] a threat to [noun]	8
15	[vb infin] a threat to [noun]	7
16	[to-vb] a threat to [noun]	6
17	of a threat to [noun]	6
18	of a threat to [noun]	6
19	[adv] a threat to [noun]	6
20	[vb base] a threat to [noun]	5
21	a [adj] threat to [noun]	59
22	a [adj] threat to [noun]	56
23	a serious threat to [noun]	12
24	a serious threat to [noun]	12
25	a real threat to [noun]	6
26	a major threat to [noun]	6
27	a real threat to [noun]	6
28	a major threat to [noun]	6
29	a threat to [art] [noun]	129
30	a threat to [art] [noun]	129