English verb conjugation
CAN COMMEMORATE

Regular verb: commemorate - commemorated - commemorated

Affirmation

Simple form	V-ing form
I can commemorate you can commemorate she can commemorate we can commemorate you can commemorate they can commemorate	I can be commemorating you can be commemorating she can be commemorating we can be commemorating you can be commemorating they can be commemorating
Perfect	V-ing perfect
I can have commemorated you can have commemorated she can have commemorated we can have commemorated you can have commemorated they can have commemorated	I can have been commemorating you can have been commemorating she can have been commemorating we can have been commemorating you can have been commemorating they can have been commemorating

Negation

Simple form	V-ing form
I can't commemorate you can't commemorate she can't commemorate we can't commemorate you can't commemorate they can't commemorate	I can't be commemorating you can't be commemorating she can't be commemorating we can't be commemorating you can't be commemorating they can't be commemorating
Perfect	V-ing perfect
I can't have commemorated you can't have commemorated she can't have commemorated we can't have commemorated you can't have commemorated they can't have commemorated	I can't have been commemorating you can't have been commemorating she can't have been commemorating we can't have been commemorating you can't have been commemorating they can't have been commemorating

Interrogative form

Simple form	V-ing form
can I commemorate? can you commemorate? can she commemorate? can we commemorate? can you commemorate? can they commemorate?	can I be commemorating? can you be commemorating? can she be commemorating? can we be commemorating? can you be commemorating? can they be commemorating?
Perfect	V-ing perfect
can I have commemorated? can you have commemorated? can she have commemorated? can we have commemorated? can you have commemorated? can they have commemorated?	can I have been commemorating? can you have been commemorating? can she have been commemorating? can we have been commemorating? can you have been commemorating? can they have been commemorating?

Interro-negative form

Simple form	V-ing form
can't I commemorate? can't you commemorate? can't she commemorate? can't we commemorate? can't you commemorate? can't they commemorate?	can't I be commemorating? can't you be commemorating? can't she be commemorating? can't we be commemorating? can't you be commemorating? can't they be commemorating?
Perfect	V-ing perfect
can't I have commemorated? can't you have commemorated? can't she have commemorated? can't we have commemorated? can't you have commemorated? can't they have commemorated?	can't I have been commemorating? can't you have been commemorating? can't she have been commemorating? can't we have been commemorating? can't you have been commemorating? can't they have been commemorating?