could flop
Regular verb: flop - flopped- flopped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could flop
you could flop
she could flop
we could flop
you could flop
they could flop 	I could be flopping
you could be flopping
she could be flopping
we could be flopping
you could be flopping
they could be flopping	I could have flopped
you could have flopped
she could have flopped
we could have flopped
you could have flopped
they could have flopped	I could have been flopping
you could have been flopping
she could have been flopping
we could have been flopping
you could have been flopping
they could have been flopping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't flop
you couldn't flop
she couldn't flop
we couldn't flop
you couldn't flop
they couldn't flop 	I couldn't be flopping
you couldn't be flopping
she couldn't be flopping
we couldn't be flopping
you couldn't be flopping
they couldn't be flopping	I couldn't have flopped
you couldn't have flopped
she couldn't have flopped
we couldn't have flopped
you couldn't have flopped
they couldn't have flopped	I couldn't have been flopping
you couldn't have been flopping
she couldn't have been flopping
we couldn't have been flopping
you couldn't have been flopping
they couldn't have been flopping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I flop?
could you flop?
could she flop?
could we flop?
could you flop?
could they flop? 	could I be flopping?
could you be flopping?
could she be flopping?
could we be flopping?
could you be flopping?
could they be flopping? 	could I have flopped?
could you have flopped?
could she have flopped?
could we have flopped?
could you have flopped?
could they have flopped? 	could I have been flopping?
could you have been flopping?
could she have been flopping?
could we have been flopping?
could you have been flopping?
could they have been flopping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I flop?
couldn't you flop?
couldn't she flop?
couldn't we flop?
couldn't you flop?
couldn't they flop? 	couldn't I be flopping?
couldn't you be flopping?
couldn't she be flopping?
couldn't we be flopping?
couldn't you be flopping?
couldn't they be flopping? 	couldn't I have flopped?
couldn't you have flopped?
couldn't she have flopped?
couldn't we have flopped?
couldn't you have flopped?
couldn't they have flopped? 	couldn't I have been flopping?
couldn't you have been flopping?
couldn't she have been flopping?
couldn't we have been flopping?
couldn't you have been flopping?
couldn't they have been flopping?