could sequelize
Regular verb: sequelize - sequelized- sequelized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could sequelize
you could sequelize
he could sequelize
we could sequelize
you could sequelize
they could sequelize 	I could be sequelizing
you could be sequelizing
he could be sequelizing
we could be sequelizing
you could be sequelizing
they could be sequelizing	I could have sequelized
you could have sequelized
he could have sequelized
we could have sequelized
you could have sequelized
they could have sequelized	I could have been sequelizing
you could have been sequelizing
he could have been sequelizing
we could have been sequelizing
you could have been sequelizing
they could have been sequelizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't sequelize
you couldn't sequelize
he couldn't sequelize
we couldn't sequelize
you couldn't sequelize
they couldn't sequelize 	I couldn't be sequelizing
you couldn't be sequelizing
he couldn't be sequelizing
we couldn't be sequelizing
you couldn't be sequelizing
they couldn't be sequelizing	I couldn't have sequelized
you couldn't have sequelized
he couldn't have sequelized
we couldn't have sequelized
you couldn't have sequelized
they couldn't have sequelized	I couldn't have been sequelizing
you couldn't have been sequelizing
he couldn't have been sequelizing
we couldn't have been sequelizing
you couldn't have been sequelizing
they couldn't have been sequelizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I sequelize?
could you sequelize?
could he sequelize?
could we sequelize?
could you sequelize?
could they sequelize? 	could I be sequelizing?
could you be sequelizing?
could he be sequelizing?
could we be sequelizing?
could you be sequelizing?
could they be sequelizing? 	could I have sequelized?
could you have sequelized?
could he have sequelized?
could we have sequelized?
could you have sequelized?
could they have sequelized? 	could I have been sequelizing?
could you have been sequelizing?
could he have been sequelizing?
could we have been sequelizing?
could you have been sequelizing?
could they have been sequelizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I sequelize?
couldn't you sequelize?
couldn't he sequelize?
couldn't we sequelize?
couldn't you sequelize?
couldn't they sequelize? 	couldn't I be sequelizing?
couldn't you be sequelizing?
couldn't he be sequelizing?
couldn't we be sequelizing?
couldn't you be sequelizing?
couldn't they be sequelizing? 	couldn't I have sequelized?
couldn't you have sequelized?
couldn't he have sequelized?
couldn't we have sequelized?
couldn't you have sequelized?
couldn't they have sequelized? 	couldn't I have been sequelizing?
couldn't you have been sequelizing?
couldn't he have been sequelizing?
couldn't we have been sequelizing?
couldn't you have been sequelizing?
couldn't they have been sequelizing?