SN4 ""

No	Pattern	Freq
1	[pron] is [prep] this [noun]	528
2	[pers pn] is [prep] this [noun]	500
3	it is [prep] this [noun]	492
4	it is [prep] this [noun]	492
5	[noun] is [prep] this [noun]	92
6	[noun sg] is [prep] this [noun]	78
7	there is [prep] this [noun]	16
8	[ex0] is [prep] this [noun]	16
9	there is [prep] this [noun]	16
10	[adv] is [prep] this [noun]	10
11	[adv] is [prep] this [noun]	10
12	[noun prp] is [prep] this [noun]	9
13	[adj] is [prep] this [noun]	6
14	[Wh det] is [prep] this [noun]	6
15	[verb] is [prep] this [noun]	5
16	who is [prep] this [noun]	5
17	he is [prep] this [noun]	5
18	who is [prep] this [noun]	5
19	[Wh pn] is [prep] this [noun]	5
20	is [verb] [prep] this [noun]	624
21	is [vb pp] [prep] this [noun]	547
22	is [adj] [prep] this [noun]	450
23	is [adj] [prep] this [noun]	426
24	is [adv] [prep] this [noun]	111
25	is [adv] [prep] this [noun]	78
26	is [v-ing] [prep] this [noun]	58
27	is [noun] [prep] this [noun]	55
28	is [noun sg] [prep] this [noun]	44
29	is [pron] [prep] this [noun]	35
30	is used [prep] this [noun]	26