can forfeit
Regular verb: forfeit - forfeited- forfeited

Affirmation 	
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I can forfeit
you can forfeit
she can forfeit
we can forfeit
you can forfeit
they can forfeit 	I can be forfeiting
you can be forfeiting
she can be forfeiting
we can be forfeiting
you can be forfeiting
they can be forfeiting	I can have forfeited
you can have forfeited
she can have forfeited
we can have forfeited
you can have forfeited
they can have forfeited	I can have been forfeiting
you can have been forfeiting
she can have been forfeiting
we can have been forfeiting
you can have been forfeiting
they can have been forfeiting	

Negation 	
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I can't forfeit
you can't forfeit
she can't forfeit
we can't forfeit
you can't forfeit
they can't forfeit 	I can't be forfeiting
you can't be forfeiting
she can't be forfeiting
we can't be forfeiting
you can't be forfeiting
they can't be forfeiting	I can't have forfeited
you can't have forfeited
she can't have forfeited
we can't have forfeited
you can't have forfeited
they can't have forfeited	I can't have been forfeiting
you can't have been forfeiting
she can't have been forfeiting
we can't have been forfeiting
you can't have been forfeiting
they can't have been forfeiting	

Interrogative form 	
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can I forfeit?
can you forfeit?
can she forfeit?
can we forfeit?
can you forfeit?
can they forfeit? 	can I be forfeiting?
can you be forfeiting?
can she be forfeiting?
can we be forfeiting?
can you be forfeiting?
can they be forfeiting? 	can I have forfeited?
can you have forfeited?
can she have forfeited?
can we have forfeited?
can you have forfeited?
can they have forfeited? 	can I have been forfeiting?
can you have been forfeiting?
can she have been forfeiting?
can we have been forfeiting?
can you have been forfeiting?
can they have been forfeiting? 	

Interro-negative form 	
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can't I forfeit?
can't you forfeit?
can't she forfeit?
can't we forfeit?
can't you forfeit?
can't they forfeit? 	can't I be forfeiting?
can't you be forfeiting?
can't she be forfeiting?
can't we be forfeiting?
can't you be forfeiting?
can't they be forfeiting? 	can't I have forfeited?
can't you have forfeited?
can't she have forfeited?
can't we have forfeited?
can't you have forfeited?
can't they have forfeited? 	can't I have been forfeiting?
can't you have been forfeiting?
can't she have been forfeiting?
can't we have been forfeiting?
can't you have been forfeiting?
can't they have been forfeiting?