English verb conjugation
CAN DETER

Regular verb: deter - detered - detered

Affirmation

Simple form	V-ing form
I can deter you can deter he can deter we can deter you can deter they can deter	I can be detering you can be detering he can be detering we can be detering you can be detering they can be detering
Perfect	V-ing perfect
I can have detered you can have detered he can have detered we can have detered you can have detered they can have detered	I can have been detering you can have been detering he can have been detering we can have been detering you can have been detering they can have been detering

Negation

Simple form	V-ing form
I cannot deter you cannot deter he cannot deter we cannot deter you cannot deter they cannot deter	I cannot be detering you cannot be detering he cannot be detering we cannot be detering you cannot be detering they cannot be detering
Perfect	V-ing perfect
I cannot have detered you cannot have detered he cannot have detered we cannot have detered you cannot have detered they cannot have detered	I cannot have been detering you cannot have been detering he cannot have been detering we cannot have been detering you cannot have been detering they cannot have been detering

Interrogative form

Simple form	V-ing form
can I deter? can you deter? can he deter? can we deter? can you deter? can they deter?	can I be detering? can you be detering? can he be detering? can we be detering? can you be detering? can they be detering?
Perfect	V-ing perfect
can I have detered? can you have detered? can he have detered? can we have detered? can you have detered? can they have detered?	can I have been detering? can you have been detering? can he have been detering? can we have been detering? can you have been detering? can they have been detering?

Interro-negative form

Simple form	V-ing form
can I not deter? can you not deter? can he not deter? can we not deter? can you not deter? can they not deter?	can I not be detering? can you not be detering? can he not be detering? can we not be detering? can you not be detering? can they not be detering?
Perfect	V-ing perfect
can I not have detered? can you not have detered? can he not have detered? can we not have detered? can you not have detered? can they not have detered?	can I not have been detering? can you not have been detering? can he not have been detering? can we not have been detering? can you not have been detering? can they not have been detering?