English verb conjugation
CAN DEMARCATE

Regular verb: demarcate - demarcated - demarcated

Affirmation

Simple form	V-ing form
I can demarcate you can demarcate she can demarcate we can demarcate you can demarcate they can demarcate	I can be demarcating you can be demarcating she can be demarcating we can be demarcating you can be demarcating they can be demarcating
Perfect	V-ing perfect
I can have demarcated you can have demarcated she can have demarcated we can have demarcated you can have demarcated they can have demarcated	I can have been demarcating you can have been demarcating she can have been demarcating we can have been demarcating you can have been demarcating they can have been demarcating

Negation

Simple form	V-ing form
I can't demarcate you can't demarcate she can't demarcate we can't demarcate you can't demarcate they can't demarcate	I can't be demarcating you can't be demarcating she can't be demarcating we can't be demarcating you can't be demarcating they can't be demarcating
Perfect	V-ing perfect
I can't have demarcated you can't have demarcated she can't have demarcated we can't have demarcated you can't have demarcated they can't have demarcated	I can't have been demarcating you can't have been demarcating she can't have been demarcating we can't have been demarcating you can't have been demarcating they can't have been demarcating

Interrogative form

Simple form	V-ing form
can I demarcate? can you demarcate? can she demarcate? can we demarcate? can you demarcate? can they demarcate?	can I be demarcating? can you be demarcating? can she be demarcating? can we be demarcating? can you be demarcating? can they be demarcating?
Perfect	V-ing perfect
can I have demarcated? can you have demarcated? can she have demarcated? can we have demarcated? can you have demarcated? can they have demarcated?	can I have been demarcating? can you have been demarcating? can she have been demarcating? can we have been demarcating? can you have been demarcating? can they have been demarcating?

Interro-negative form

Simple form	V-ing form
can't I demarcate? can't you demarcate? can't she demarcate? can't we demarcate? can't you demarcate? can't they demarcate?	can't I be demarcating? can't you be demarcating? can't she be demarcating? can't we be demarcating? can't you be demarcating? can't they be demarcating?
Perfect	V-ing perfect
can't I have demarcated? can't you have demarcated? can't she have demarcated? can't we have demarcated? can't you have demarcated? can't they have demarcated?	can't I have been demarcating? can't you have been demarcating? can't she have been demarcating? can't we have been demarcating? can't you have been demarcating? can't they have been demarcating?