could fingerprint
Regular verb: fingerprint - fingerprinted- fingerprinted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could fingerprint
you could fingerprint
he could fingerprint
we could fingerprint
you could fingerprint
they could fingerprint 	I could be fingerprinting
you could be fingerprinting
he could be fingerprinting
we could be fingerprinting
you could be fingerprinting
they could be fingerprinting	I could have fingerprinted
you could have fingerprinted
he could have fingerprinted
we could have fingerprinted
you could have fingerprinted
they could have fingerprinted	I could have been fingerprinting
you could have been fingerprinting
he could have been fingerprinting
we could have been fingerprinting
you could have been fingerprinting
they could have been fingerprinting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't fingerprint
you couldn't fingerprint
he couldn't fingerprint
we couldn't fingerprint
you couldn't fingerprint
they couldn't fingerprint 	I couldn't be fingerprinting
you couldn't be fingerprinting
he couldn't be fingerprinting
we couldn't be fingerprinting
you couldn't be fingerprinting
they couldn't be fingerprinting	I couldn't have fingerprinted
you couldn't have fingerprinted
he couldn't have fingerprinted
we couldn't have fingerprinted
you couldn't have fingerprinted
they couldn't have fingerprinted	I couldn't have been fingerprinting
you couldn't have been fingerprinting
he couldn't have been fingerprinting
we couldn't have been fingerprinting
you couldn't have been fingerprinting
they couldn't have been fingerprinting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I fingerprint?
could you fingerprint?
could he fingerprint?
could we fingerprint?
could you fingerprint?
could they fingerprint? 	could I be fingerprinting?
could you be fingerprinting?
could he be fingerprinting?
could we be fingerprinting?
could you be fingerprinting?
could they be fingerprinting? 	could I have fingerprinted?
could you have fingerprinted?
could he have fingerprinted?
could we have fingerprinted?
could you have fingerprinted?
could they have fingerprinted? 	could I have been fingerprinting?
could you have been fingerprinting?
could he have been fingerprinting?
could we have been fingerprinting?
could you have been fingerprinting?
could they have been fingerprinting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I fingerprint?
couldn't you fingerprint?
couldn't he fingerprint?
couldn't we fingerprint?
couldn't you fingerprint?
couldn't they fingerprint? 	couldn't I be fingerprinting?
couldn't you be fingerprinting?
couldn't he be fingerprinting?
couldn't we be fingerprinting?
couldn't you be fingerprinting?
couldn't they be fingerprinting? 	couldn't I have fingerprinted?
couldn't you have fingerprinted?
couldn't he have fingerprinted?
couldn't we have fingerprinted?
couldn't you have fingerprinted?
couldn't they have fingerprinted? 	couldn't I have been fingerprinting?
couldn't you have been fingerprinting?
couldn't he have been fingerprinting?
couldn't we have been fingerprinting?
couldn't you have been fingerprinting?
couldn't they have been fingerprinting?