English verb conjugation
CAN REPLACE

Regular verb: replace - replaced - replaced

Affirmation

Simple form	V-ing form
I can replace you can replace he can replace we can replace you can replace they can replace	I can be replacing you can be replacing he can be replacing we can be replacing you can be replacing they can be replacing
Perfect	V-ing perfect
I can have replaced you can have replaced he can have replaced we can have replaced you can have replaced they can have replaced	I can have been replacing you can have been replacing he can have been replacing we can have been replacing you can have been replacing they can have been replacing

Negation

Simple form	V-ing form
I can't replace you can't replace he can't replace we can't replace you can't replace they can't replace	I can't be replacing you can't be replacing he can't be replacing we can't be replacing you can't be replacing they can't be replacing
Perfect	V-ing perfect
I can't have replaced you can't have replaced he can't have replaced we can't have replaced you can't have replaced they can't have replaced	I can't have been replacing you can't have been replacing he can't have been replacing we can't have been replacing you can't have been replacing they can't have been replacing

Interrogative form

Simple form	V-ing form
can I replace? can you replace? can he replace? can we replace? can you replace? can they replace?	can I be replacing? can you be replacing? can he be replacing? can we be replacing? can you be replacing? can they be replacing?
Perfect	V-ing perfect
can I have replaced? can you have replaced? can he have replaced? can we have replaced? can you have replaced? can they have replaced?	can I have been replacing? can you have been replacing? can he have been replacing? can we have been replacing? can you have been replacing? can they have been replacing?

Interro-negative form

Simple form	V-ing form
can't I replace? can't you replace? can't he replace? can't we replace? can't you replace? can't they replace?	can't I be replacing? can't you be replacing? can't he be replacing? can't we be replacing? can't you be replacing? can't they be replacing?
Perfect	V-ing perfect
can't I have replaced? can't you have replaced? can't he have replaced? can't we have replaced? can't you have replaced? can't they have replaced?	can't I have been replacing? can't you have been replacing? can't he have been replacing? can't we have been replacing? can't you have been replacing? can't they have been replacing?