SN4 ""

No	Pattern	Freq
1	[adv] is [pron] [adj] [prep]	50
2	[adv] is [pers pn] [adj] [prep]	46
3	[adv] is it [adj] [prep]	36
4	[adv] is it [adj] [prep]	36
5	[Wh adv] is [pron] [adj] [prep]	29
6	[adv] is [pron] [adj] [prep]	28
7	[adv] is [pron] [adj] for	26
8	why is [pron] [adj] [prep]	16
9	why is [pron] [adj] [prep]	16
10	[adv] is [pron] [adj] to	12
11	how is [pron] [adj] [prep]	10
12	how is [pron] [adj] [prep]	10
13	[adv] is [indef pn] [adj] [prep]	9
14	[adv] is [pron] possible [prep]	9
15	[adv] is [pron] possible [prep]	9
16	[adv] is he [adj] [prep]	8
17	[adv] is he [adj] [prep]	8
18	[adv] is [pron] [adj] in	8
19	[adv] is nothing [adj] [prep]	6
20	[adv] is [pron] necessary [prep]	6
21	here is [pron] [adj] [prep]	6
22	[adv] is [pron] necessary [prep]	6
23	here is [pron] [adj] [prep]	6
24	only is [pron] [adj] [prep]	6
25	[adv] is nothing [adj] [prep]	6
26	only is [pron] [adj] [prep]	6
27	[adv] is [pron] likely [prep]	5
28	[adv] is [pron] likely [prep]	5