SN4 ""

No	Pattern	Freq
1	[noun] [prep] perhaps a	48
2	[noun sg] [prep] perhaps a	36
3	[verb] [prep] perhaps a	15
4	[adv] [prep] perhaps a	13
5	[noun pl] [prep] perhaps a	9
6	[adv prt] [prep] perhaps a	8
7	[adj] [prep] perhaps a	7
8	[vb pp] [prep] perhaps a	5
9	[adv] [prep] perhaps a	5
10	[adj] [prep] perhaps a	5
11	[prep] perhaps [prep] a	10
12	[prep] perhaps [prep] a	10
13	[prep] perhaps half a	8
14	[prep] perhaps half a	8
15	[prep] perhaps [det] a	8
16	[prep] perhaps [adj] a	8
17	[prep] perhaps [verb] a	7
18	[prep] perhaps [adv] a	5
19	[prep] perhaps [v-ing] a	5
20	[prep] perhaps [adv] a	5
21	[prep] perhaps a [noun]	60
22	[prep] perhaps a [adj]	59
23	[prep] perhaps a [noun sg]	57
24	[prep] perhaps a [adj]	28
25	[prep] perhaps a [num]	16
26	[prep] perhaps a dozen	9
27	[prep] perhaps a [adv]	9
28	[prep] perhaps a [adv]	9
29	[prep] perhaps a dozen	9
30	[prep] perhaps a few	8