SN4 ""

No	Pattern	Freq
1	[noun prp] [conj] it is [verb]	75
2	[noun prp] [conj] it is [vb pp]	61
3	[noun prp] [subord] it is [verb]	39
4	[noun prp] [coord] it is [verb]	29
5	[noun prp] and it is [verb]	22
6	[noun prp] and it is [verb]	22
7	[noun prp] [conj] it is [v-ing]	10
8	[noun prp] because it is [verb]	7
9	[noun prp] that it is [verb]	7
10	[noun prp] when it is [verb]	7
11	[noun prp] when it is [verb]	7
12	[noun prp] because it is [verb]	7
13	[noun prp] but it is [verb]	7
14	[noun prp] as it is [verb]	7
15	[noun prp] as it is [verb]	7
16	[noun prp] that it is [verb]	7
17	[noun prp] but it is [verb]	7
18	[noun prp] [that] it is [verb]	7
19	[noun prp] [conj] it is hoped	6
20	[noun prp] [conj] it is hope	6
21	[noun prp] where it is [verb]	5
22	[noun prp] where it is [verb]	5