English verb conjugation
COULD PREPLACE

Regular verb: preplace - preplaced - preplaced

Affirmation

Simple form	V-ing form
I could preplace you could preplace he could preplace we could preplace you could preplace they could preplace	I could be preplacing you could be preplacing he could be preplacing we could be preplacing you could be preplacing they could be preplacing
Perfect	V-ing perfect
I could have preplaced you could have preplaced he could have preplaced we could have preplaced you could have preplaced they could have preplaced	I could have been preplacing you could have been preplacing he could have been preplacing we could have been preplacing you could have been preplacing they could have been preplacing

Negation

Simple form	V-ing form
I couldn't preplace you couldn't preplace he couldn't preplace we couldn't preplace you couldn't preplace they couldn't preplace	I couldn't be preplacing you couldn't be preplacing he couldn't be preplacing we couldn't be preplacing you couldn't be preplacing they couldn't be preplacing
Perfect	V-ing perfect
I couldn't have preplaced you couldn't have preplaced he couldn't have preplaced we couldn't have preplaced you couldn't have preplaced they couldn't have preplaced	I couldn't have been preplacing you couldn't have been preplacing he couldn't have been preplacing we couldn't have been preplacing you couldn't have been preplacing they couldn't have been preplacing

Interrogative form

Simple form	V-ing form
could I preplace? could you preplace? could he preplace? could we preplace? could you preplace? could they preplace?	could I be preplacing? could you be preplacing? could he be preplacing? could we be preplacing? could you be preplacing? could they be preplacing?
Perfect	V-ing perfect
could I have preplaced? could you have preplaced? could he have preplaced? could we have preplaced? could you have preplaced? could they have preplaced?	could I have been preplacing? could you have been preplacing? could he have been preplacing? could we have been preplacing? could you have been preplacing? could they have been preplacing?

Interro-negative form

Simple form	V-ing form
couldn't I preplace? couldn't you preplace? couldn't he preplace? couldn't we preplace? couldn't you preplace? couldn't they preplace?	couldn't I be preplacing? couldn't you be preplacing? couldn't he be preplacing? couldn't we be preplacing? couldn't you be preplacing? couldn't they be preplacing?
Perfect	V-ing perfect
couldn't I have preplaced? couldn't you have preplaced? couldn't he have preplaced? couldn't we have preplaced? couldn't you have preplaced? couldn't they have preplaced?	couldn't I have been preplacing? couldn't you have been preplacing? couldn't he have been preplacing? couldn't we have been preplacing? couldn't you have been preplacing? couldn't they have been preplacing?