SN4 ""

No	Pattern	Freq
1	[pron] is [adj] reason	133
2	there is [adj] reason	111
3	there is [adj] reason	111
4	[ex0] is [adj] reason	111
5	[adj] is [adj] reason	97
6	[det] is [adj] reason	95
7	this is [adj] reason	59
8	this is [adj] reason	59
9	that is [adj] reason	35
10	that is [adj] reason	35
11	[noun] is [adj] reason	20
12	[Wh det] is [adj] reason	17
13	which is [adj] reason	16
14	which is [adj] reason	16
15	[noun sg] is [adj] reason	16
16	is [art] [adj] reason	315
17	is [art] [adj] reason	315
18	is no [adj] reason	129
19	is no [adj] reason	129
20	is [prep] [adj] reason	114
21	is [prep] [adj] reason	114
22	is for [adj] reason	111
23	is for [adj] reason	111
24	is a [adj] reason	101
25	is the [adj] reason	85
26	is the [adj] reason	85
27	is a [adj] reason	80
28	is [pron] [adj] reason	47
29	is [ex0] [adj] reason	40
30	is there [adj] reason	40