SN4 ""

No	Pattern	Freq
1	[conj] [prep] practice it is	26
2	[coord] [prep] practice it is	17
3	but [prep] practice it is	15
4	but [prep] practice it is	15
5	[subord] [prep] practice it is	7
6	[prep] practice it is [adv]	39
7	[prep] practice it is [adv]	32
8	[prep] practice it is [adj]	29
9	[prep] practice it is [adj]	26
10	[prep] practice it is difficult	9
11	[prep] practice it is difficult	9
12	[prep] practice it is [not/n't]	7
13	[prep] practice it is not	7
14	[prep] practice it is often	7
15	[prep] practice it is not	7
16	[prep] practice it is often	7