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 can't quest you can't quest she can't quest we can't quest you can't quest they can't quest	I can't be questing you can't be questing she can't be questing we can't be questing you can't be questing they can't be questing
Perfect	V-ing perfect
I can't have quested you can't have quested she can't have quested we can't have quested you can't have quested they can't have quested	I can't have been questing you can't have been questing she can't have been questing we can't have been questing you can't have been questing they can't 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't I quest? can't you quest? can't she quest? can't we quest? can't you quest? can't they quest?	can't I be questing? can't you be questing? can't she be questing? can't we be questing? can't you be questing? can't they be questing?
Perfect	V-ing perfect
can't I have quested? can't you have quested? can't she have quested? can't we have quested? can't you have quested? can't they have quested?	can't I have been questing? can't you have been questing? can't she have been questing? can't we have been questing? can't you have been questing? can't they have been questing?