SN4 ""

No	Pattern	Freq
1	[noun] [is] [vb pp] at the [adj]	64
2	[noun sg] [is] [vb pp] at the [adj]	57
3	[pron] [is] [vb pp] at the [adj]	28
4	[pers pn] [is] [vb pp] at the [adj]	17
5	it [is] [vb pp] at the [adj]	15
6	it [is] [vb pp] at the [adj]	15
7	[conj] [is] [vb pp] at the [adj]	8
8	[Wh det] [is] [vb pp] at the [adj]	8
9	which [is] [vb pp] at the [adj]	7
10	which [is] [vb pp] at the [adj]	7
11	[coord] [is] [vb pp] at the [adj]	5
12	and [is] [vb pp] at the [adj]	5
13	and [is] [vb pp] at the [adj]	5
14	[is] [adv] [vb pp] at the [adj]	25
15	[is] [adv] [vb pp] at the [adj]	18
16	[is] be [vb pp] at the [adj]	11
17	[is] [be] [vb pp] at the [adj]	11
18	[is] being [vb pp] at the [adj]	10
19	[is] [being] [vb pp] at the [adj]	10
20	[is] not [vb pp] at the [adj]	7
21	[is] [not/n't] [vb pp] at the [adj]	7
22	[is] not [vb pp] at the [adj]	7
23	[is] [vb pp] [adv] at the [adj]	14
24	[is] [vb pp] [adv] at the [adj]	9
25	[is] [vb pp] [adv prt] at the [adj]	5
26	[is] [vb pp] at [v-ing] the [adj]	11
27	[is] [vb pp] at [verb] the [adj]	11
28	[is] [vb pp] at the [adj] [adj]	12
29	[is] [vb pp] at the [adj] [adj]	7
30	[is] [vb pp] at the [adv] [adj]	6