English verb conjugation
CAN DEMUR

Regular verb: demur - demurred - demurred

Affirmation

Simple form	V-ing form
I can demur you can demur he can demur we can demur you can demur they can demur	I can be demurring you can be demurring he can be demurring we can be demurring you can be demurring they can be demurring
Perfect	V-ing perfect
I can have demurred you can have demurred he can have demurred we can have demurred you can have demurred they can have demurred	I can have been demurring you can have been demurring he can have been demurring we can have been demurring you can have been demurring they can have been demurring

Negation

Simple form	V-ing form
I can't demur you can't demur he can't demur we can't demur you can't demur they can't demur	I can't be demurring you can't be demurring he can't be demurring we can't be demurring you can't be demurring they can't be demurring
Perfect	V-ing perfect
I can't have demurred you can't have demurred he can't have demurred we can't have demurred you can't have demurred they can't have demurred	I can't have been demurring you can't have been demurring he can't have been demurring we can't have been demurring you can't have been demurring they can't have been demurring

Interrogative form

Simple form	V-ing form
can I demur? can you demur? can he demur? can we demur? can you demur? can they demur?	can I be demurring? can you be demurring? can he be demurring? can we be demurring? can you be demurring? can they be demurring?
Perfect	V-ing perfect
can I have demurred? can you have demurred? can he have demurred? can we have demurred? can you have demurred? can they have demurred?	can I have been demurring? can you have been demurring? can he have been demurring? can we have been demurring? can you have been demurring? can they have been demurring?

Interro-negative form

Simple form	V-ing form
can't I demur? can't you demur? can't he demur? can't we demur? can't you demur? can't they demur?	can't I be demurring? can't you be demurring? can't he be demurring? can't we be demurring? can't you be demurring? can't they be demurring?
Perfect	V-ing perfect
can't I have demurred? can't you have demurred? can't he have demurred? can't we have demurred? can't you have demurred? can't they have demurred?	can't I have been demurring? can't you have been demurring? can't he have been demurring? can't we have been demurring? can't you have been demurring? can't they have been demurring?