English verb conjugation
CAN DECALCIFY

Regular verb: decalcify - decalcified - decalcified

Affirmation

Simple form	V-ing form
I can decalcify you can decalcify he can decalcify we can decalcify you can decalcify they can decalcify	I can be decalcifying you can be decalcifying he can be decalcifying we can be decalcifying you can be decalcifying they can be decalcifying
Perfect	V-ing perfect
I can have decalcified you can have decalcified he can have decalcified we can have decalcified you can have decalcified they can have decalcified	I can have been decalcifying you can have been decalcifying he can have been decalcifying we can have been decalcifying you can have been decalcifying they can have been decalcifying

Negation

Simple form	V-ing form
I cannot decalcify you cannot decalcify he cannot decalcify we cannot decalcify you cannot decalcify they cannot decalcify	I cannot be decalcifying you cannot be decalcifying he cannot be decalcifying we cannot be decalcifying you cannot be decalcifying they cannot be decalcifying
Perfect	V-ing perfect
I cannot have decalcified you cannot have decalcified he cannot have decalcified we cannot have decalcified you cannot have decalcified they cannot have decalcified	I cannot have been decalcifying you cannot have been decalcifying he cannot have been decalcifying we cannot have been decalcifying you cannot have been decalcifying they cannot have been decalcifying

Interrogative form

Simple form	V-ing form
can I decalcify? can you decalcify? can he decalcify? can we decalcify? can you decalcify? can they decalcify?	can I be decalcifying? can you be decalcifying? can he be decalcifying? can we be decalcifying? can you be decalcifying? can they be decalcifying?
Perfect	V-ing perfect
can I have decalcified? can you have decalcified? can he have decalcified? can we have decalcified? can you have decalcified? can they have decalcified?	can I have been decalcifying? can you have been decalcifying? can he have been decalcifying? can we have been decalcifying? can you have been decalcifying? can they have been decalcifying?

Interro-negative form

Simple form	V-ing form
can I not decalcify? can you not decalcify? can he not decalcify? can we not decalcify? can you not decalcify? can they not decalcify?	can I not be decalcifying? can you not be decalcifying? can he not be decalcifying? can we not be decalcifying? can you not be decalcifying? can they not be decalcifying?
Perfect	V-ing perfect
can I not have decalcified? can you not have decalcified? can he not have decalcified? can we not have decalcified? can you not have decalcified? can they not have decalcified?	can I not have been decalcifying? can you not have been decalcifying? can he not have been decalcifying? can we not have been decalcifying? can you not have been decalcifying? can they not have been decalcifying?