SN4 ""

No	Pattern	Freq
1	[noun sg] [prep] [pers pn] is to [be]	8
2	[noun] [prep] [pers pn] is to [be]	8
3	[verb] [prep] [pers pn] is to [be]	5
4	[prep] [pron] [pers pn] is to [be]	64
5	[prep] [Wh det] [pers pn] is to [be]	60
6	[prep] what [pers pn] is to [be]	32
7	[prep] what [pers pn] is to [be]	32
8	[prep] which [pers pn] is to [be]	28
9	[prep] which [pers pn] is to [be]	28
10	[prep] [Wh adv] [pers pn] is to [be]	12
11	[prep] [adv] [pers pn] is to [be]	12
12	[prep] how [pers pn] is to [be]	9
13	[prep] how [pers pn] is to [be]	9
14	[prep] [noun] [pers pn] is to [be]	6
15	[prep] [pers pn] is [verb] to [be]	17
16	[prep] [pers pn] is [vb pp] to [be]	9
17	[prep] [pers pn] is going to [be]	8
18	[prep] [pers pn] is [v-ing] to [be]	8
19	[prep] [pers pn] is go to [be]	8
20	[prep] [pers pn] is [adj] to [be]	7
21	[prep] [pers pn] is [adj] to [be]	7
22	[prep] [pers pn] is likely to [be]	5
23	[prep] [pers pn] is likely to [be]	5
24	[prep] [pers pn] is to [be] [vb pp]	13
25	[prep] [pers pn] is to [be] [verb]	13