SN4 ""

No	Pattern	Freq
1	[noun] [prep] this is [prep]	49
2	[noun sg] [prep] this is [prep]	47
3	[adj] [prep] this is [prep]	14
4	[det] [prep] this is [prep]	13
5	example [prep] this is [prep]	11
6	example [prep] this is [prep]	11
7	[verb] [prep] this is [prep]	10
8	all [prep] this is [prep]	5
9	all [prep] this is [prep]	5
10	[prep] [verb] this is [prep]	14
11	[prep] [v-ing] this is [prep]	14
12	[prep] do this is [prep]	7
13	[prep] doing this is [prep]	7
14	[prep] [adv] this is [prep]	5
15	[prep] how this is [prep]	5
16	[prep] [Wh adv] this is [prep]	5
17	[prep] how this is [prep]	5
18	[prep] this [noun] is [prep]	224
19	[prep] this [noun sg] is [prep]	222
20	[prep] this [pron] is [prep]	10
21	[prep] this book is [prep]	9
22	[prep] this book is [prep]	9
23	[prep] this chapter is [prep]	8
24	[prep] this [pers pn] is [prep]	8
25	[prep] this chapter is [prep]	8
26	[prep] this country is [prep]	7
27	[prep] this country is [prep]	7
28	[prep] this it is [prep]	7
29	[prep] this it is [prep]	7
30	[prep] this area is [prep]	6