could pilot
Regular verb: pilot - piloted- piloted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could pilot
you could pilot
she could pilot
we could pilot
you could pilot
they could pilot 	I could be piloting
you could be piloting
she could be piloting
we could be piloting
you could be piloting
they could be piloting	I could have piloted
you could have piloted
she could have piloted
we could have piloted
you could have piloted
they could have piloted	I could have been piloting
you could have been piloting
she could have been piloting
we could have been piloting
you could have been piloting
they could have been piloting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't pilot
you couldn't pilot
she couldn't pilot
we couldn't pilot
you couldn't pilot
they couldn't pilot 	I couldn't be piloting
you couldn't be piloting
she couldn't be piloting
we couldn't be piloting
you couldn't be piloting
they couldn't be piloting	I couldn't have piloted
you couldn't have piloted
she couldn't have piloted
we couldn't have piloted
you couldn't have piloted
they couldn't have piloted	I couldn't have been piloting
you couldn't have been piloting
she couldn't have been piloting
we couldn't have been piloting
you couldn't have been piloting
they couldn't have been piloting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I pilot?
could you pilot?
could she pilot?
could we pilot?
could you pilot?
could they pilot? 	could I be piloting?
could you be piloting?
could she be piloting?
could we be piloting?
could you be piloting?
could they be piloting? 	could I have piloted?
could you have piloted?
could she have piloted?
could we have piloted?
could you have piloted?
could they have piloted? 	could I have been piloting?
could you have been piloting?
could she have been piloting?
could we have been piloting?
could you have been piloting?
could they have been piloting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I pilot?
couldn't you pilot?
couldn't she pilot?
couldn't we pilot?
couldn't you pilot?
couldn't they pilot? 	couldn't I be piloting?
couldn't you be piloting?
couldn't she be piloting?
couldn't we be piloting?
couldn't you be piloting?
couldn't they be piloting? 	couldn't I have piloted?
couldn't you have piloted?
couldn't she have piloted?
couldn't we have piloted?
couldn't you have piloted?
couldn't they have piloted? 	couldn't I have been piloting?
couldn't you have been piloting?
couldn't she have been piloting?
couldn't we have been piloting?
couldn't you have been piloting?
couldn't they have been piloting?