could moderate
Regular verb: moderate - moderated- moderated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could moderate
you could moderate
he could moderate
we could moderate
you could moderate
they could moderate 	I could be moderating
you could be moderating
he could be moderating
we could be moderating
you could be moderating
they could be moderating	I could have moderated
you could have moderated
he could have moderated
we could have moderated
you could have moderated
they could have moderated	I could have been moderating
you could have been moderating
he could have been moderating
we could have been moderating
you could have been moderating
they could have been moderating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't moderate
you couldn't moderate
he couldn't moderate
we couldn't moderate
you couldn't moderate
they couldn't moderate 	I couldn't be moderating
you couldn't be moderating
he couldn't be moderating
we couldn't be moderating
you couldn't be moderating
they couldn't be moderating	I couldn't have moderated
you couldn't have moderated
he couldn't have moderated
we couldn't have moderated
you couldn't have moderated
they couldn't have moderated	I couldn't have been moderating
you couldn't have been moderating
he couldn't have been moderating
we couldn't have been moderating
you couldn't have been moderating
they couldn't have been moderating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I moderate?
could you moderate?
could he moderate?
could we moderate?
could you moderate?
could they moderate? 	could I be moderating?
could you be moderating?
could he be moderating?
could we be moderating?
could you be moderating?
could they be moderating? 	could I have moderated?
could you have moderated?
could he have moderated?
could we have moderated?
could you have moderated?
could they have moderated? 	could I have been moderating?
could you have been moderating?
could he have been moderating?
could we have been moderating?
could you have been moderating?
could they have been moderating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I moderate?
couldn't you moderate?
couldn't he moderate?
couldn't we moderate?
couldn't you moderate?
couldn't they moderate? 	couldn't I be moderating?
couldn't you be moderating?
couldn't he be moderating?
couldn't we be moderating?
couldn't you be moderating?
couldn't they be moderating? 	couldn't I have moderated?
couldn't you have moderated?
couldn't he have moderated?
couldn't we have moderated?
couldn't you have moderated?
couldn't they have moderated? 	couldn't I have been moderating?
couldn't you have been moderating?
couldn't he have been moderating?
couldn't we have been moderating?
couldn't you have been moderating?
couldn't they have been moderating?