SN4 ""

No	Pattern	Freq
1	[noun] for a month	137
2	[noun sg] for a month	95
3	[verb] for a month	74
4	[adv] for a month	64
5	[adv prt] for a month	39
6	[vb pp] for a month	28
7	[noun prp] for a month	23
8	[adv] for a month	22
9	[pron] for a month	19
10	out for a month	18
11	out for a month	18
12	[pers pn] for a month	17
13	[noun pl] for a month	16
14	[adj] for a month	15
15	[v-ing] for a month	11
16	[adj] for a month	10
17	[vb past] for a month	9
18	[vb base] for a month	8
19	it for a month	7
20	[to-vb] for a month	7
21	it for a month	7
22	[vb infin] for a month	7
23	back for a month	5
24	back for a month	5
25	for [prep] a month	54
26	for [prep] a month	54
27	for about a month	33
28	for about a month	33
29	for over a month	19
30	for over a month	19