SN4 ""

No	Pattern	Freq
1	[adj] [to-vb] [conj] the [noun sg] is	120
2	[adj] [verb] that the [noun sg] is	81
3	[adj] [verb] [that] the [noun sg] is	81
4	[adj] [verb] that the [noun sg] is	81
5	[adj] [verb] [subord] the [noun sg] is	44
6	difficult [verb] [conj] the [noun sg] is	14
7	[adj] ensure [conj] the [noun sg] is	13
8	[adj] to ensure [conj] the [noun sg] is	12
9	important [verb] [conj] the [noun sg] is	12
10	[adj] [verb] if the [noun sg] is	12
11	[adj] [verb] if the [noun sg] is	12
12	[adj] [verb] whether the [noun sg] is	9
13	[adj] [verb] whether the [noun sg] is	9
14	likely [verb] [conj] the [noun sg] is	9
15	[adj] see [conj] the [noun sg] is	8
16	easy [verb] [conj] the [noun sg] is	8
17	[adj] to see [conj] the [noun sg] is	8
18	[adj] say [conj] the [noun sg] is	7
19	[adj] to say [conj] the [noun sg] is	7
20	[adj] [verb] as the [noun sg] is	7
21	[adj] [verb] when the [noun sg] is	7
22	[adj] [verb] as the [noun sg] is	7
23	[adj] [verb] when the [noun sg] is	7
24	[adj] [verb] [conj] the child is	6
25	[adj] to check [conj] the [noun sg] is	5
26	possible [verb] [conj] the [noun sg] is	5
27	[adj] check [conj] the [noun sg] is	5
28	[adj] happen [conj] the [noun sg] is	5