English verb conjugation
COULD PARALLEL

Regular verb: parallel - paralleled - paralleled

Affirmation

Simple form	V-ing form
I could parallel you could parallel he could parallel we could parallel you could parallel they could parallel	I could be paralleling you could be paralleling he could be paralleling we could be paralleling you could be paralleling they could be paralleling
Perfect	V-ing perfect
I could have paralleled you could have paralleled he could have paralleled we could have paralleled you could have paralleled they could have paralleled	I could have been paralleling you could have been paralleling he could have been paralleling we could have been paralleling you could have been paralleling they could have been paralleling

Negation

Simple form	V-ing form
I couldn't parallel you couldn't parallel he couldn't parallel we couldn't parallel you couldn't parallel they couldn't parallel	I couldn't be paralleling you couldn't be paralleling he couldn't be paralleling we couldn't be paralleling you couldn't be paralleling they couldn't be paralleling
Perfect	V-ing perfect
I couldn't have paralleled you couldn't have paralleled he couldn't have paralleled we couldn't have paralleled you couldn't have paralleled they couldn't have paralleled	I couldn't have been paralleling you couldn't have been paralleling he couldn't have been paralleling we couldn't have been paralleling you couldn't have been paralleling they couldn't have been paralleling

Interrogative form

Simple form	V-ing form
could I parallel? could you parallel? could he parallel? could we parallel? could you parallel? could they parallel?	could I be paralleling? could you be paralleling? could he be paralleling? could we be paralleling? could you be paralleling? could they be paralleling?
Perfect	V-ing perfect
could I have paralleled? could you have paralleled? could he have paralleled? could we have paralleled? could you have paralleled? could they have paralleled?	could I have been paralleling? could you have been paralleling? could he have been paralleling? could we have been paralleling? could you have been paralleling? could they have been paralleling?

Interro-negative form

Simple form	V-ing form
couldn't I parallel? couldn't you parallel? couldn't he parallel? couldn't we parallel? couldn't you parallel? couldn't they parallel?	couldn't I be paralleling? couldn't you be paralleling? couldn't he be paralleling? couldn't we be paralleling? couldn't you be paralleling? couldn't they be paralleling?
Perfect	V-ing perfect
couldn't I have paralleled? couldn't you have paralleled? couldn't he have paralleled? couldn't we have paralleled? couldn't you have paralleled? couldn't they have paralleled?	couldn't I have been paralleling? couldn't you have been paralleling? couldn't he have been paralleling? couldn't we have been paralleling? couldn't you have been paralleling? couldn't they have been paralleling?