could asphalt
Regular verb: asphalt - asphalted- asphalted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could asphalt
you could asphalt
she could asphalt
we could asphalt
you could asphalt
they could asphalt 	I could be asphalting
you could be asphalting
she could be asphalting
we could be asphalting
you could be asphalting
they could be asphalting	I could have asphalted
you could have asphalted
she could have asphalted
we could have asphalted
you could have asphalted
they could have asphalted	I could have been asphalting
you could have been asphalting
she could have been asphalting
we could have been asphalting
you could have been asphalting
they could have been asphalting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't asphalt
you couldn't asphalt
she couldn't asphalt
we couldn't asphalt
you couldn't asphalt
they couldn't asphalt 	I couldn't be asphalting
you couldn't be asphalting
she couldn't be asphalting
we couldn't be asphalting
you couldn't be asphalting
they couldn't be asphalting	I couldn't have asphalted
you couldn't have asphalted
she couldn't have asphalted
we couldn't have asphalted
you couldn't have asphalted
they couldn't have asphalted	I couldn't have been asphalting
you couldn't have been asphalting
she couldn't have been asphalting
we couldn't have been asphalting
you couldn't have been asphalting
they couldn't have been asphalting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I asphalt?
could you asphalt?
could she asphalt?
could we asphalt?
could you asphalt?
could they asphalt? 	could I be asphalting?
could you be asphalting?
could she be asphalting?
could we be asphalting?
could you be asphalting?
could they be asphalting? 	could I have asphalted?
could you have asphalted?
could she have asphalted?
could we have asphalted?
could you have asphalted?
could they have asphalted? 	could I have been asphalting?
could you have been asphalting?
could she have been asphalting?
could we have been asphalting?
could you have been asphalting?
could they have been asphalting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I asphalt?
couldn't you asphalt?
couldn't she asphalt?
couldn't we asphalt?
couldn't you asphalt?
couldn't they asphalt? 	couldn't I be asphalting?
couldn't you be asphalting?
couldn't she be asphalting?
couldn't we be asphalting?
couldn't you be asphalting?
couldn't they be asphalting? 	couldn't I have asphalted?
couldn't you have asphalted?
couldn't she have asphalted?
couldn't we have asphalted?
couldn't you have asphalted?
couldn't they have asphalted? 	couldn't I have been asphalting?
couldn't you have been asphalting?
couldn't she have been asphalting?
couldn't we have been asphalting?
couldn't you have been asphalting?
couldn't they have been asphalting?