English verb conjugation
CAN ICE

Regular verb: ice - iced - iced

Affirmation

Simple form	V-ing form
I can ice you can ice he can ice we can ice you can ice they can ice	I can be icing you can be icing he can be icing we can be icing you can be icing they can be icing
Perfect	V-ing perfect
I can have iced you can have iced he can have iced we can have iced you can have iced they can have iced	I can have been icing you can have been icing he can have been icing we can have been icing you can have been icing they can have been icing

Negation

Simple form	V-ing form
I cannot ice you cannot ice he cannot ice we cannot ice you cannot ice they cannot ice	I cannot be icing you cannot be icing he cannot be icing we cannot be icing you cannot be icing they cannot be icing
Perfect	V-ing perfect
I cannot have iced you cannot have iced he cannot have iced we cannot have iced you cannot have iced they cannot have iced	I cannot have been icing you cannot have been icing he cannot have been icing we cannot have been icing you cannot have been icing they cannot have been icing

Interrogative form

Simple form	V-ing form
can I ice? can you ice? can he ice? can we ice? can you ice? can they ice?	can I be icing? can you be icing? can he be icing? can we be icing? can you be icing? can they be icing?
Perfect	V-ing perfect
can I have iced? can you have iced? can he have iced? can we have iced? can you have iced? can they have iced?	can I have been icing? can you have been icing? can he have been icing? can we have been icing? can you have been icing? can they have been icing?

Interro-negative form

Simple form	V-ing form
can I not ice? can you not ice? can he not ice? can we not ice? can you not ice? can they not ice?	can I not be icing? can you not be icing? can he not be icing? can we not be icing? can you not be icing? can they not be icing?
Perfect	V-ing perfect
can I not have iced? can you not have iced? can he not have iced? can we not have iced? can you not have iced? can they not have iced?	can I not have been icing? can you not have been icing? can he not have been icing? can we not have been icing? can you not have been icing? can they not have been icing?