English verb conjugation
CAN QUEST

Regular verb: quest - quested - quested

Affirmation

Simple form	V-ing form
I can quest you can quest she can quest we can quest you can quest they can quest	I can be questing you can be questing she can be questing we can be questing you can be questing they can be questing
Perfect	V-ing perfect
I can have quested you can have quested she can have quested we can have quested you can have quested they can have quested	I can have been questing you can have been questing she can have been questing we can have been questing you can have been questing they can have been questing

Negation

Simple form	V-ing form
I cannot quest you cannot quest she cannot quest we cannot quest you cannot quest they cannot quest	I cannot be questing you cannot be questing she cannot be questing we cannot be questing you cannot be questing they cannot be questing
Perfect	V-ing perfect
I cannot have quested you cannot have quested she cannot have quested we cannot have quested you cannot have quested they cannot have quested	I cannot have been questing you cannot have been questing she cannot have been questing we cannot have been questing you cannot have been questing they cannot have been questing

Interrogative form

Simple form	V-ing form
can I quest? can you quest? can she quest? can we quest? can you quest? can they quest?	can I be questing? can you be questing? can she be questing? can we be questing? can you be questing? can they be questing?
Perfect	V-ing perfect
can I have quested? can you have quested? can she have quested? can we have quested? can you have quested? can they have quested?	can I have been questing? can you have been questing? can she have been questing? can we have been questing? can you have been questing? can they have been questing?

Interro-negative form

Simple form	V-ing form
can I not quest? can you not quest? can she not quest? can we not quest? can you not quest? can they not quest?	can I not be questing? can you not be questing? can she not be questing? can we not be questing? can you not be questing? can they not be questing?
Perfect	V-ing perfect
can I not have quested? can you not have quested? can she not have quested? can we not have quested? can you not have quested? can they not have quested?	can I not have been questing? can you not have been questing? can she not have been questing? can we not have been questing? can you not have been questing? can they not have been questing?