could etiolate
Regular verb: etiolate - etiolated- etiolated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could etiolate
you could etiolate
she could etiolate
we could etiolate
you could etiolate
they could etiolate 	I could be etiolating
you could be etiolating
she could be etiolating
we could be etiolating
you could be etiolating
they could be etiolating	I could have etiolated
you could have etiolated
she could have etiolated
we could have etiolated
you could have etiolated
they could have etiolated	I could have been etiolating
you could have been etiolating
she could have been etiolating
we could have been etiolating
you could have been etiolating
they could have been etiolating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not etiolate
you could not etiolate
she could not etiolate
we could not etiolate
you could not etiolate
they could not etiolate 	I could not be etiolating
you could not be etiolating
she could not be etiolating
we could not be etiolating
you could not be etiolating
they could not be etiolating	I could not have etiolated
you could not have etiolated
she could not have etiolated
we could not have etiolated
you could not have etiolated
they could not have etiolated	I could not have been etiolating
you could not have been etiolating
she could not have been etiolating
we could not have been etiolating
you could not have been etiolating
they could not have been etiolating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I etiolate?
could you etiolate?
could she etiolate?
could we etiolate?
could you etiolate?
could they etiolate? 	could I be etiolating?
could you be etiolating?
could she be etiolating?
could we be etiolating?
could you be etiolating?
could they be etiolating? 	could I have etiolated?
could you have etiolated?
could she have etiolated?
could we have etiolated?
could you have etiolated?
could they have etiolated? 	could I have been etiolating?
could you have been etiolating?
could she have been etiolating?
could we have been etiolating?
could you have been etiolating?
could they have been etiolating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not etiolate?
could you not etiolate?
could she not etiolate?
could we not etiolate?
could you not etiolate?
could they not etiolate? 	could I not be etiolating?
could you not be etiolating?
could she not be etiolating?
could we not be etiolating?
could you not be etiolating?
could they not be etiolating? 	could I not have etiolated?
could you not have etiolated?
could she not have etiolated?
could we not have etiolated?
could you not have etiolated?
could they not have etiolated? 	could I not have been etiolating?
could you not have been etiolating?
could she not have been etiolating?
could we not have been etiolating?
could you not have been etiolating?
could they not have been etiolating?