English verb conjugation
COULD SEQUELIZE

Regular verb: sequelize - sequelized - sequelized

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?