English verb conjugation
COULD SEQUELIZE

Regular verb: sequelize - sequelized - sequelized

Affirmation

Simple form	V-ing form
I could sequelize you could sequelize she could sequelize we could sequelize you could sequelize they could sequelize	I could be sequelizing you could be sequelizing she 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 she 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 she 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 she 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 she 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 she 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 she 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 she sequelize? could we sequelize? could you sequelize? could they sequelize?	could I be sequelizing? could you be sequelizing? could she 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 she 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 she 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 she 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 she 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 she 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 she have been sequelizing? couldn't we have been sequelizing? couldn't you have been sequelizing? couldn't they have been sequelizing?