English verb conjugation
CAN ILLUSTRATE

Regular verb: illustrate - illustrated - illustrated

Affirmation

Simple form	V-ing form
I can illustrate you can illustrate he can illustrate we can illustrate you can illustrate they can illustrate	I can be illustrating you can be illustrating he can be illustrating we can be illustrating you can be illustrating they can be illustrating
Perfect	V-ing perfect
I can have illustrated you can have illustrated he can have illustrated we can have illustrated you can have illustrated they can have illustrated	I can have been illustrating you can have been illustrating he can have been illustrating we can have been illustrating you can have been illustrating they can have been illustrating

Negation

Simple form	V-ing form
I cannot illustrate you cannot illustrate he cannot illustrate we cannot illustrate you cannot illustrate they cannot illustrate	I cannot be illustrating you cannot be illustrating he cannot be illustrating we cannot be illustrating you cannot be illustrating they cannot be illustrating
Perfect	V-ing perfect
I cannot have illustrated you cannot have illustrated he cannot have illustrated we cannot have illustrated you cannot have illustrated they cannot have illustrated	I cannot have been illustrating you cannot have been illustrating he cannot have been illustrating we cannot have been illustrating you cannot have been illustrating they cannot have been illustrating

Interrogative form

Simple form	V-ing form
can I illustrate? can you illustrate? can he illustrate? can we illustrate? can you illustrate? can they illustrate?	can I be illustrating? can you be illustrating? can he be illustrating? can we be illustrating? can you be illustrating? can they be illustrating?
Perfect	V-ing perfect
can I have illustrated? can you have illustrated? can he have illustrated? can we have illustrated? can you have illustrated? can they have illustrated?	can I have been illustrating? can you have been illustrating? can he have been illustrating? can we have been illustrating? can you have been illustrating? can they have been illustrating?

Interro-negative form

Simple form	V-ing form
can I not illustrate? can you not illustrate? can he not illustrate? can we not illustrate? can you not illustrate? can they not illustrate?	can I not be illustrating? can you not be illustrating? can he not be illustrating? can we not be illustrating? can you not be illustrating? can they not be illustrating?
Perfect	V-ing perfect
can I not have illustrated? can you not have illustrated? can he not have illustrated? can we not have illustrated? can you not have illustrated? can they not have illustrated?	can I not have been illustrating? can you not have been illustrating? can he not have been illustrating? can we not have been illustrating? can you not have been illustrating? can they not have been illustrating?