SN4 ""

No	Pattern	Freq
1	[noun] [is] often [verb] to	95
2	[noun sg] [is] often [verb] to	84
3	[pron] [is] often [verb] to	48
4	[pers pn] [is] often [verb] to	24
5	[Wh det] [is] often [verb] to	21
6	it [is] often [verb] to	20
7	it [is] often [verb] to	20
8	which [is] often [verb] to	15
9	which [is] often [verb] to	15
10	[adj] [is] often [verb] to	12
11	this [is] often [verb] to	10
12	this [is] often [verb] to	10
13	[det] [is] often [verb] to	10
14	[conj] [is] often [verb] to	7
15	[noun prp] [is] often [verb] to	6
16	what [is] often [verb] to	6
17	what [is] often [verb] to	6
18	[is] [adv] often [verb] to	18
19	[is] [adv] often [verb] to	17
20	[is] often [adv] [verb] to	12
21	[is] often [adv] [verb] to	11
22	[is] often [verb] [adv prt] to	5
23	[is] often [verb] [adv] to	5
24	[is] often [verb] to [be]	50
25	[is] often [verb] to [be]	50
26	[is] often [verb] to be	50
27	[is] often [verb] to be	50
28	[is] often [verb] to [prep]	42
29	[is] often [verb] to [prep]	42
30	[is] often [verb] to as	41