Table 41.5 Coulthard’s (2004) findings for the string ‘I asked her if I could carry her bags’

String	Instances
I asked	2,170,000
I asked her	284,000
I asked her if	86,000
I asked her if I	10,400
I asked her if I could	7770
I asked if I could carry	7
I asked her if I could carry her	4
I asked her if I could carry her bags	0

Source: Coulthard, R. M. (2004) ‘Author Identification, Idiolect, and Linguistic Uniqueness’ Applied
Linguistics 25(4): 441. Reproduced by permission of Oxford University Press.