SN4 ""

No	Pattern	Freq
1	a [noun] for [det] [noun pl]	317
2	a [noun sg] for [det] [noun pl]	315
3	a [noun] for all [noun pl]	88
4	a [noun] for many [noun pl]	49
5	a [noun] for [det] years	37
6	a [noun] for some [noun pl]	34
7	a [noun] for such [noun pl]	26
8	a [noun] for these [noun pl]	26
9	a [noun] for several [noun pl]	23
10	a [noun] for [det] seasons	19
11	a [noun] for both [noun pl]	18
12	a [noun] for those [noun pl]	15
13	a tendency for [det] [noun pl]	14
14	a tendency for [det] [noun pl]	14
15	a [noun] for most [noun pl]	13
16	a problem for [det] [noun pl]	11
17	a man for [det] [noun pl]	11
18	a man for [det] [noun pl]	11
19	a problem for [det] [noun pl]	11
20	a [noun] for any [noun pl]	10
21	a [noun] for [det] things	8
22	a [noun] for more [noun pl]	8
23	a [noun] for [det] companies	7
24	a [noun] for [det] days	7
25	a [noun] for [det] kinds	7
26	a [noun] for [det] months	6
27	a [noun] for [det] parties	6
28	a [noun] for [det] assets	6
29	a place for [det] [noun pl]	5
30	a [noun] for [det] women	5