could footnote
Regular verb: footnote - footnoted- footnoted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could footnote
you could footnote
she could footnote
we could footnote
you could footnote
they could footnote 	I could be footnoting
you could be footnoting
she could be footnoting
we could be footnoting
you could be footnoting
they could be footnoting	I could have footnoted
you could have footnoted
she could have footnoted
we could have footnoted
you could have footnoted
they could have footnoted	I could have been footnoting
you could have been footnoting
she could have been footnoting
we could have been footnoting
you could have been footnoting
they could have been footnoting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't footnote
you couldn't footnote
she couldn't footnote
we couldn't footnote
you couldn't footnote
they couldn't footnote 	I couldn't be footnoting
you couldn't be footnoting
she couldn't be footnoting
we couldn't be footnoting
you couldn't be footnoting
they couldn't be footnoting	I couldn't have footnoted
you couldn't have footnoted
she couldn't have footnoted
we couldn't have footnoted
you couldn't have footnoted
they couldn't have footnoted	I couldn't have been footnoting
you couldn't have been footnoting
she couldn't have been footnoting
we couldn't have been footnoting
you couldn't have been footnoting
they couldn't have been footnoting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I footnote?
could you footnote?
could she footnote?
could we footnote?
could you footnote?
could they footnote? 	could I be footnoting?
could you be footnoting?
could she be footnoting?
could we be footnoting?
could you be footnoting?
could they be footnoting? 	could I have footnoted?
could you have footnoted?
could she have footnoted?
could we have footnoted?
could you have footnoted?
could they have footnoted? 	could I have been footnoting?
could you have been footnoting?
could she have been footnoting?
could we have been footnoting?
could you have been footnoting?
could they have been footnoting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I footnote?
couldn't you footnote?
couldn't she footnote?
couldn't we footnote?
couldn't you footnote?
couldn't they footnote? 	couldn't I be footnoting?
couldn't you be footnoting?
couldn't she be footnoting?
couldn't we be footnoting?
couldn't you be footnoting?
couldn't they be footnoting? 	couldn't I have footnoted?
couldn't you have footnoted?
couldn't she have footnoted?
couldn't we have footnoted?
couldn't you have footnoted?
couldn't they have footnoted? 	couldn't I have been footnoting?
couldn't you have been footnoting?
couldn't she have been footnoting?
couldn't we have been footnoting?
couldn't you have been footnoting?
couldn't they have been footnoting?