SN4 ""

No	Pattern	Freq
1	[noun] is that it is [verb]	34
2	[noun sg] is that it is [verb]	31
3	[adj] is that it is [verb]	6
4	is [verb] that it is [verb]	8
5	is [adj] that it is [verb]	8
6	is [adj] that it is [verb]	7
7	is [vb pp] that it is [verb]	5
8	is that it is [adj] [verb]	63
9	is that it is [adj] [verb]	55
10	is that it is [adv] [verb]	25
11	is that it is [adv] [verb]	18
12	is that it is possible [verb]	11
13	is that it is possible [verb]	11
14	is that it is easy [verb]	11
15	is that it is impossible [verb]	10
16	is that it is impossible [verb]	10
17	is that it is not [verb]	7
18	is that it is [not/n't] [verb]	7
19	is that it is hard [verb]	6
20	is that it is easy [verb]	6
21	is that it is [adj -er] [verb]	6
22	is that it is hard [verb]	6
23	is that it is not [verb]	6
24	is that it is easier [verb]	5
25	is that it is [verb] [prep]	35
26	is that it is [verb] [prep]	35
27	is that it is [verb] to	8
28	is that it is [verb] to	8
29	is that it is [verb] [adv]	6
30	is that it is [verb] by	6