could scare
Regular verb: scare - scared- scared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could scare
you could scare
he could scare
we could scare
you could scare
they could scare 	I could be scaring
you could be scaring
he could be scaring
we could be scaring
you could be scaring
they could be scaring	I could have scared
you could have scared
he could have scared
we could have scared
you could have scared
they could have scared	I could have been scaring
you could have been scaring
he could have been scaring
we could have been scaring
you could have been scaring
they could have been scaring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't scare
you couldn't scare
he couldn't scare
we couldn't scare
you couldn't scare
they couldn't scare 	I couldn't be scaring
you couldn't be scaring
he couldn't be scaring
we couldn't be scaring
you couldn't be scaring
they couldn't be scaring	I couldn't have scared
you couldn't have scared
he couldn't have scared
we couldn't have scared
you couldn't have scared
they couldn't have scared	I couldn't have been scaring
you couldn't have been scaring
he couldn't have been scaring
we couldn't have been scaring
you couldn't have been scaring
they couldn't have been scaring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I scare?
could you scare?
could he scare?
could we scare?
could you scare?
could they scare? 	could I be scaring?
could you be scaring?
could he be scaring?
could we be scaring?
could you be scaring?
could they be scaring? 	could I have scared?
could you have scared?
could he have scared?
could we have scared?
could you have scared?
could they have scared? 	could I have been scaring?
could you have been scaring?
could he have been scaring?
could we have been scaring?
could you have been scaring?
could they have been scaring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I scare?
couldn't you scare?
couldn't he scare?
couldn't we scare?
couldn't you scare?
couldn't they scare? 	couldn't I be scaring?
couldn't you be scaring?
couldn't he be scaring?
couldn't we be scaring?
couldn't you be scaring?
couldn't they be scaring? 	couldn't I have scared?
couldn't you have scared?
couldn't he have scared?
couldn't we have scared?
couldn't you have scared?
couldn't they have scared? 	couldn't I have been scaring?
couldn't you have been scaring?
couldn't he have been scaring?
couldn't we have been scaring?
couldn't you have been scaring?
couldn't they have been scaring?