could preattune
Regular verb: preattune - preattuned- preattuned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could preattune
you could preattune
he could preattune
we could preattune
you could preattune
they could preattune 	I could be preattuning
you could be preattuning
he could be preattuning
we could be preattuning
you could be preattuning
they could be preattuning	I could have preattuned
you could have preattuned
he could have preattuned
we could have preattuned
you could have preattuned
they could have preattuned	I could have been preattuning
you could have been preattuning
he could have been preattuning
we could have been preattuning
you could have been preattuning
they could have been preattuning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't preattune
you couldn't preattune
he couldn't preattune
we couldn't preattune
you couldn't preattune
they couldn't preattune 	I couldn't be preattuning
you couldn't be preattuning
he couldn't be preattuning
we couldn't be preattuning
you couldn't be preattuning
they couldn't be preattuning	I couldn't have preattuned
you couldn't have preattuned
he couldn't have preattuned
we couldn't have preattuned
you couldn't have preattuned
they couldn't have preattuned	I couldn't have been preattuning
you couldn't have been preattuning
he couldn't have been preattuning
we couldn't have been preattuning
you couldn't have been preattuning
they couldn't have been preattuning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I preattune?
could you preattune?
could he preattune?
could we preattune?
could you preattune?
could they preattune? 	could I be preattuning?
could you be preattuning?
could he be preattuning?
could we be preattuning?
could you be preattuning?
could they be preattuning? 	could I have preattuned?
could you have preattuned?
could he have preattuned?
could we have preattuned?
could you have preattuned?
could they have preattuned? 	could I have been preattuning?
could you have been preattuning?
could he have been preattuning?
could we have been preattuning?
could you have been preattuning?
could they have been preattuning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I preattune?
couldn't you preattune?
couldn't he preattune?
couldn't we preattune?
couldn't you preattune?
couldn't they preattune? 	couldn't I be preattuning?
couldn't you be preattuning?
couldn't he be preattuning?
couldn't we be preattuning?
couldn't you be preattuning?
couldn't they be preattuning? 	couldn't I have preattuned?
couldn't you have preattuned?
couldn't he have preattuned?
couldn't we have preattuned?
couldn't you have preattuned?
couldn't they have preattuned? 	couldn't I have been preattuning?
couldn't you have been preattuning?
couldn't he have been preattuning?
couldn't we have been preattuning?
couldn't you have been preattuning?
couldn't they have been preattuning?