English verb conjugation
CAN DESCALE

Regular verb: descale - descaled - descaled

Affirmation

Simple form	V-ing form
I can descale you can descale he can descale we can descale you can descale they can descale	I can be descaling you can be descaling he can be descaling we can be descaling you can be descaling they can be descaling
Perfect	V-ing perfect
I can have descaled you can have descaled he can have descaled we can have descaled you can have descaled they can have descaled	I can have been descaling you can have been descaling he can have been descaling we can have been descaling you can have been descaling they can have been descaling

Negation

Simple form	V-ing form
I cannot descale you cannot descale he cannot descale we cannot descale you cannot descale they cannot descale	I cannot be descaling you cannot be descaling he cannot be descaling we cannot be descaling you cannot be descaling they cannot be descaling
Perfect	V-ing perfect
I cannot have descaled you cannot have descaled he cannot have descaled we cannot have descaled you cannot have descaled they cannot have descaled	I cannot have been descaling you cannot have been descaling he cannot have been descaling we cannot have been descaling you cannot have been descaling they cannot have been descaling

Interrogative form

Simple form	V-ing form
can I descale? can you descale? can he descale? can we descale? can you descale? can they descale?	can I be descaling? can you be descaling? can he be descaling? can we be descaling? can you be descaling? can they be descaling?
Perfect	V-ing perfect
can I have descaled? can you have descaled? can he have descaled? can we have descaled? can you have descaled? can they have descaled?	can I have been descaling? can you have been descaling? can he have been descaling? can we have been descaling? can you have been descaling? can they have been descaling?

Interro-negative form

Simple form	V-ing form
can I not descale? can you not descale? can he not descale? can we not descale? can you not descale? can they not descale?	can I not be descaling? can you not be descaling? can he not be descaling? can we not be descaling? can you not be descaling? can they not be descaling?
Perfect	V-ing perfect
can I not have descaled? can you not have descaled? can he not have descaled? can we not have descaled? can you not have descaled? can they not have descaled?	can I not have been descaling? can you not have been descaling? can he not have been descaling? can we not have been descaling? can you not have been descaling? can they not have been descaling?