could foreknow
Irregular verb: foreknow - foreknew- foreknown

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could foreknow
you could foreknow
she could foreknow
we could foreknow
you could foreknow
they could foreknow 	I could be foreknowing
you could be foreknowing
she could be foreknowing
we could be foreknowing
you could be foreknowing
they could be foreknowing	I could have foreknown
you could have foreknown
she could have foreknown
we could have foreknown
you could have foreknown
they could have foreknown	I could have been foreknowing
you could have been foreknowing
she could have been foreknowing
we could have been foreknowing
you could have been foreknowing
they could have been foreknowing	

Negation 	
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I couldn't foreknow
you couldn't foreknow
she couldn't foreknow
we couldn't foreknow
you couldn't foreknow
they couldn't foreknow 	I couldn't be foreknowing
you couldn't be foreknowing
she couldn't be foreknowing
we couldn't be foreknowing
you couldn't be foreknowing
they couldn't be foreknowing	I couldn't have foreknown
you couldn't have foreknown
she couldn't have foreknown
we couldn't have foreknown
you couldn't have foreknown
they couldn't have foreknown	I couldn't have been foreknowing
you couldn't have been foreknowing
she couldn't have been foreknowing
we couldn't have been foreknowing
you couldn't have been foreknowing
they couldn't have been foreknowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I foreknow?
could you foreknow?
could she foreknow?
could we foreknow?
could you foreknow?
could they foreknow? 	could I be foreknowing?
could you be foreknowing?
could she be foreknowing?
could we be foreknowing?
could you be foreknowing?
could they be foreknowing? 	could I have foreknown?
could you have foreknown?
could she have foreknown?
could we have foreknown?
could you have foreknown?
could they have foreknown? 	could I have been foreknowing?
could you have been foreknowing?
could she have been foreknowing?
could we have been foreknowing?
could you have been foreknowing?
could they have been foreknowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I foreknow?
couldn't you foreknow?
couldn't she foreknow?
couldn't we foreknow?
couldn't you foreknow?
couldn't they foreknow? 	couldn't I be foreknowing?
couldn't you be foreknowing?
couldn't she be foreknowing?
couldn't we be foreknowing?
couldn't you be foreknowing?
couldn't they be foreknowing? 	couldn't I have foreknown?
couldn't you have foreknown?
couldn't she have foreknown?
couldn't we have foreknown?
couldn't you have foreknown?
couldn't they have foreknown? 	couldn't I have been foreknowing?
couldn't you have been foreknowing?
couldn't she have been foreknowing?
couldn't we have been foreknowing?
couldn't you have been foreknowing?
couldn't they have been foreknowing?