SN4 ""

No	Pattern	Freq
1	[noun] [conj] [pers pn] is [verb] to	136
2	[noun] [conj] [pron] is [vb pp] to	127
3	[noun sg] [conj] [pron] is [verb] to	124
4	[noun] [conj] it is [verb] to	109
5	[noun] [conj] it is [verb] to	109
6	[noun] [subord] [pron] is [verb] to	89
7	[noun] that [pron] is [verb] to	38
8	[noun] [that] [pron] is [verb] to	38
9	[noun] that [pron] is [verb] to	38
10	[noun] [coord] [pron] is [verb] to	35
11	[noun] [conj] [pron] is [v-ing] to	33
12	[noun pl] [conj] [pron] is [verb] to	26
13	[noun] and [pron] is [verb] to	24
14	[noun] and [pron] is [verb] to	24
15	[noun] [conj] he is [verb] to	22
16	[noun] [conj] he is [verb] to	22
17	[noun] [conj] [pron] is go to	16
18	[noun] if [pron] is [verb] to	15
19	[noun] if [pron] is [verb] to	15
20	[noun] [conj] [pron] is going to	15
21	[noun] as [pron] is [verb] to	14
22	[noun] as [pron] is [verb] to	14
23	[noun] before [pron] is [verb] to	12
24	[noun] before [pron] is [verb] to	12
25	[noun] where [pron] is [verb] to	11
26	[noun] when [pron] is [verb] to	11
27	[noun] where [pron] is [verb] to	11
28	[noun] when [pron] is [verb] to	11
29	[noun] [conj] [Wh det] is [verb] to	10
30	[noun] because [pron] is [verb] to	9