could oar
Regular verb: oar - oared- oared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could oar
you could oar
she could oar
we could oar
you could oar
they could oar 	I could be oaring
you could be oaring
she could be oaring
we could be oaring
you could be oaring
they could be oaring	I could have oared
you could have oared
she could have oared
we could have oared
you could have oared
they could have oared	I could have been oaring
you could have been oaring
she could have been oaring
we could have been oaring
you could have been oaring
they could have been oaring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't oar
you couldn't oar
she couldn't oar
we couldn't oar
you couldn't oar
they couldn't oar 	I couldn't be oaring
you couldn't be oaring
she couldn't be oaring
we couldn't be oaring
you couldn't be oaring
they couldn't be oaring	I couldn't have oared
you couldn't have oared
she couldn't have oared
we couldn't have oared
you couldn't have oared
they couldn't have oared	I couldn't have been oaring
you couldn't have been oaring
she couldn't have been oaring
we couldn't have been oaring
you couldn't have been oaring
they couldn't have been oaring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I oar?
could you oar?
could she oar?
could we oar?
could you oar?
could they oar? 	could I be oaring?
could you be oaring?
could she be oaring?
could we be oaring?
could you be oaring?
could they be oaring? 	could I have oared?
could you have oared?
could she have oared?
could we have oared?
could you have oared?
could they have oared? 	could I have been oaring?
could you have been oaring?
could she have been oaring?
could we have been oaring?
could you have been oaring?
could they have been oaring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I oar?
couldn't you oar?
couldn't she oar?
couldn't we oar?
couldn't you oar?
couldn't they oar? 	couldn't I be oaring?
couldn't you be oaring?
couldn't she be oaring?
couldn't we be oaring?
couldn't you be oaring?
couldn't they be oaring? 	couldn't I have oared?
couldn't you have oared?
couldn't she have oared?
couldn't we have oared?
couldn't you have oared?
couldn't they have oared? 	couldn't I have been oaring?
couldn't you have been oaring?
couldn't she have been oaring?
couldn't we have been oaring?
couldn't you have been oaring?
couldn't they have been oaring?