SN4 ""

No	Pattern	Freq
1	[noun] [conj] is for	14
2	[noun sg] [conj] is for	11
3	[conj] [pron] is for	265
4	[conj] [pers pn] is for	240
5	[conj] it is for	236
6	[conj] it is for	236
7	[conj] [adj] is for	37
8	[conj] [det] is for	33
9	[conj] [noun] is for	28
10	[conj] [noun sg] is for	20
11	[conj] this is for	18
12	[conj] this is for	18
13	[conj] that is for	15
14	[conj] there is for	15
15	[conj] [ex0] is for	15
16	[conj] there is for	15
17	[conj] that is for	15
18	[conj] [indef pn] is for	9
19	[conj] is [adj] for	389
20	[conj] is [adj] for	376
21	[conj] is [verb] for	276
22	[conj] is [vb pp] for	209
23	[conj] is responsible for	74
24	[conj] is responsible for	74
25	[conj] is [v-ing] for	65
26	[conj] is suitable for	41
27	[conj] is suitable for	41
28	[conj] is used for	34
29	[conj] is use for	34
30	[conj] is required for	30