could expectorate
Regular verb: expectorate - expectorated- expectorated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could expectorate
you could expectorate
she could expectorate
we could expectorate
you could expectorate
they could expectorate 	I could be expectorating
you could be expectorating
she could be expectorating
we could be expectorating
you could be expectorating
they could be expectorating	I could have expectorated
you could have expectorated
she could have expectorated
we could have expectorated
you could have expectorated
they could have expectorated	I could have been expectorating
you could have been expectorating
she could have been expectorating
we could have been expectorating
you could have been expectorating
they could have been expectorating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not expectorate
you could not expectorate
she could not expectorate
we could not expectorate
you could not expectorate
they could not expectorate 	I could not be expectorating
you could not be expectorating
she could not be expectorating
we could not be expectorating
you could not be expectorating
they could not be expectorating	I could not have expectorated
you could not have expectorated
she could not have expectorated
we could not have expectorated
you could not have expectorated
they could not have expectorated	I could not have been expectorating
you could not have been expectorating
she could not have been expectorating
we could not have been expectorating
you could not have been expectorating
they could not have been expectorating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I expectorate?
could you expectorate?
could she expectorate?
could we expectorate?
could you expectorate?
could they expectorate? 	could I be expectorating?
could you be expectorating?
could she be expectorating?
could we be expectorating?
could you be expectorating?
could they be expectorating? 	could I have expectorated?
could you have expectorated?
could she have expectorated?
could we have expectorated?
could you have expectorated?
could they have expectorated? 	could I have been expectorating?
could you have been expectorating?
could she have been expectorating?
could we have been expectorating?
could you have been expectorating?
could they have been expectorating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not expectorate?
could you not expectorate?
could she not expectorate?
could we not expectorate?
could you not expectorate?
could they not expectorate? 	could I not be expectorating?
could you not be expectorating?
could she not be expectorating?
could we not be expectorating?
could you not be expectorating?
could they not be expectorating? 	could I not have expectorated?
could you not have expectorated?
could she not have expectorated?
could we not have expectorated?
could you not have expectorated?
could they not have expectorated? 	could I not have been expectorating?
could you not have been expectorating?
could she not have been expectorating?
could we not have been expectorating?
could you not have been expectorating?
could they not have been expectorating?