could recall
Regular verb: recall - recalled- recalled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could recall
you could recall
he could recall
we could recall
you could recall
they could recall 	I could be recalling
you could be recalling
he could be recalling
we could be recalling
you could be recalling
they could be recalling	I could have recalled
you could have recalled
he could have recalled
we could have recalled
you could have recalled
they could have recalled	I could have been recalling
you could have been recalling
he could have been recalling
we could have been recalling
you could have been recalling
they could have been recalling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't recall
you couldn't recall
he couldn't recall
we couldn't recall
you couldn't recall
they couldn't recall 	I couldn't be recalling
you couldn't be recalling
he couldn't be recalling
we couldn't be recalling
you couldn't be recalling
they couldn't be recalling	I couldn't have recalled
you couldn't have recalled
he couldn't have recalled
we couldn't have recalled
you couldn't have recalled
they couldn't have recalled	I couldn't have been recalling
you couldn't have been recalling
he couldn't have been recalling
we couldn't have been recalling
you couldn't have been recalling
they couldn't have been recalling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I recall?
could you recall?
could he recall?
could we recall?
could you recall?
could they recall? 	could I be recalling?
could you be recalling?
could he be recalling?
could we be recalling?
could you be recalling?
could they be recalling? 	could I have recalled?
could you have recalled?
could he have recalled?
could we have recalled?
could you have recalled?
could they have recalled? 	could I have been recalling?
could you have been recalling?
could he have been recalling?
could we have been recalling?
could you have been recalling?
could they have been recalling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I recall?
couldn't you recall?
couldn't he recall?
couldn't we recall?
couldn't you recall?
couldn't they recall? 	couldn't I be recalling?
couldn't you be recalling?
couldn't he be recalling?
couldn't we be recalling?
couldn't you be recalling?
couldn't they be recalling? 	couldn't I have recalled?
couldn't you have recalled?
couldn't he have recalled?
couldn't we have recalled?
couldn't you have recalled?
couldn't they have recalled? 	couldn't I have been recalling?
couldn't you have been recalling?
couldn't he have been recalling?
couldn't we have been recalling?
couldn't you have been recalling?
couldn't they have been recalling?