SN4 ""

No	Pattern	Freq
1	[noun] for long period	89
2	[verb] for long period	84
3	[noun sg] for long period	63
4	[adj] for long period	33
5	[vb pp] for long period	33
6	[adj] for long period	31
7	[adv] for long period	29
8	[noun pl] for long period	22
9	[adv] for long period	22
10	[to-vb] for long period	17
11	[vb infin] for long period	11
12	[conj] for long period	10
13	[vb past] for long period	8
14	[v-ing] for long period	7
15	[adv prt] for long period	7
16	[vb base] for long period	7
17	[coord] for long period	5
18	for [art] long period	72
19	for [art] long period	72
20	for a long period	71
21	for a long period	71
22	for [adv] long period	27
23	for [adv] long period	27
24	for quite long period	7
25	for quite long period	7
26	for very long period	6
27	for very long period	6
28	for relatively long period	5
29	for relatively long period	5
30	for long period [prep]	107