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 can't deter you can't deter he can't deter we can't deter you can't deter they can't deter	I can't be detering you can't be detering he can't be detering we can't be detering you can't be detering they can't be detering
Perfect	V-ing perfect
I can't have detered you can't have detered he can't have detered we can't have detered you can't have detered they can't have detered	I can't have been detering you can't have been detering he can't have been detering we can't have been detering you can't have been detering they can't 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't I deter? can't you deter? can't he deter? can't we deter? can't you deter? can't they deter?	can't I be detering? can't you be detering? can't he be detering? can't we be detering? can't you be detering? can't they be detering?
Perfect	V-ing perfect
can't I have detered? can't you have detered? can't he have detered? can't we have detered? can't you have detered? can't they have detered?	can't I have been detering? can't you have been detering? can't he have been detering? can't we have been detering? can't you have been detering? can't they have been detering?