SN4 ""

No	Pattern	Freq
1	[prep] twenty minutes	191
2	[prep] twenty minutes	191
3	[adv] twenty minutes	135
4	[adv] twenty minutes	134
5	about twenty minutes	88
6	about twenty minutes	88
7	[adj] twenty minutes	78
8	for twenty minutes	58
9	for twenty minutes	58
10	[verb] twenty minutes	53
11	[conj] twenty minutes	50
12	in twenty minutes	46
13	in twenty minutes	46
14	[coord] twenty minutes	35
15	[det] twenty minutes	34
16	[num ord] twenty minutes	30
17	[noun] twenty minutes	28
18	after twenty minutes	24
19	after twenty minutes	24
20	[art] twenty minutes	23
21	[art] twenty minutes	23
22	[be] twenty minutes	22
23	be twenty minutes	22
24	and twenty minutes	18
25	and twenty minutes	18
26	[vb past] twenty minutes	17
27	or twenty minutes	16
28	another twenty minutes	16
29	some twenty minutes	16
30	another twenty minutes	16