SN4 ""

No	Pattern	Freq
1	[noun] is [vb pp] to be a	210
2	[noun sg] is [vb pp] to be a	167
3	[pron] is [vb pp] to be a	145
4	[pers pn] is [vb pp] to be a	49
5	[Wh det] is [vb pp] to be a	49
6	[adj] is [vb pp] to be a	44
7	[ex0] is [vb pp] to be a	39
8	there is [vb pp] to be a	39
9	there is [vb pp] to be a	39
10	[det] is [vb pp] to be a	36
11	what is [vb pp] to be a	33
12	what is [vb pp] to be a	33
13	it is [vb pp] to be a	31
14	it is [vb pp] to be a	31
15	this is [vb pp] to be a	28
16	this is [vb pp] to be a	28
17	[noun pl] is [vb pp] to be a	19
18	[noun prp] is [vb pp] to be a	17
19	which is [vb pp] to be a	16
20	which is [vb pp] to be a	16
21	[conj] is [vb pp] to be a	16
22	[coord] is [vb pp] to be a	14
23	and is [vb pp] to be a	11
24	and is [vb pp] to be a	11
25	he is [vb pp] to be a	10
26	he is [vb pp] to be a	10
27	[Wh pn] is [vb pp] to be a	6
28	who is [vb pp] to be a	6
29	who is [vb pp] to be a	6
30	is [adv] [vb pp] to be a	112