could float
Regular verb: float - floated- floated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could float
you could float
he could float
we could float
you could float
they could float 	I could be floating
you could be floating
he could be floating
we could be floating
you could be floating
they could be floating	I could have floated
you could have floated
he could have floated
we could have floated
you could have floated
they could have floated	I could have been floating
you could have been floating
he could have been floating
we could have been floating
you could have been floating
they could have been floating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not float
you could not float
he could not float
we could not float
you could not float
they could not float 	I could not be floating
you could not be floating
he could not be floating
we could not be floating
you could not be floating
they could not be floating	I could not have floated
you could not have floated
he could not have floated
we could not have floated
you could not have floated
they could not have floated	I could not have been floating
you could not have been floating
he could not have been floating
we could not have been floating
you could not have been floating
they could not have been floating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I float?
could you float?
could he float?
could we float?
could you float?
could they float? 	could I be floating?
could you be floating?
could he be floating?
could we be floating?
could you be floating?
could they be floating? 	could I have floated?
could you have floated?
could he have floated?
could we have floated?
could you have floated?
could they have floated? 	could I have been floating?
could you have been floating?
could he have been floating?
could we have been floating?
could you have been floating?
could they have been floating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not float?
could you not float?
could he not float?
could we not float?
could you not float?
could they not float? 	could I not be floating?
could you not be floating?
could he not be floating?
could we not be floating?
could you not be floating?
could they not be floating? 	could I not have floated?
could you not have floated?
could he not have floated?
could we not have floated?
could you not have floated?
could they not have floated? 	could I not have been floating?
could you not have been floating?
could he not have been floating?
could we not have been floating?
could you not have been floating?
could they not have been floating?