could hyperoxygenate
Regular verb: hyperoxygenate - hyperoxygenated- hyperoxygenated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could hyperoxygenate
you could hyperoxygenate
he could hyperoxygenate
we could hyperoxygenate
you could hyperoxygenate
they could hyperoxygenate 	I could be hyperoxygenating
you could be hyperoxygenating
he could be hyperoxygenating
we could be hyperoxygenating
you could be hyperoxygenating
they could be hyperoxygenating	I could have hyperoxygenated
you could have hyperoxygenated
he could have hyperoxygenated
we could have hyperoxygenated
you could have hyperoxygenated
they could have hyperoxygenated	I could have been hyperoxygenating
you could have been hyperoxygenating
he could have been hyperoxygenating
we could have been hyperoxygenating
you could have been hyperoxygenating
they could have been hyperoxygenating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't hyperoxygenate
you couldn't hyperoxygenate
he couldn't hyperoxygenate
we couldn't hyperoxygenate
you couldn't hyperoxygenate
they couldn't hyperoxygenate 	I couldn't be hyperoxygenating
you couldn't be hyperoxygenating
he couldn't be hyperoxygenating
we couldn't be hyperoxygenating
you couldn't be hyperoxygenating
they couldn't be hyperoxygenating	I couldn't have hyperoxygenated
you couldn't have hyperoxygenated
he couldn't have hyperoxygenated
we couldn't have hyperoxygenated
you couldn't have hyperoxygenated
they couldn't have hyperoxygenated	I couldn't have been hyperoxygenating
you couldn't have been hyperoxygenating
he couldn't have been hyperoxygenating
we couldn't have been hyperoxygenating
you couldn't have been hyperoxygenating
they couldn't have been hyperoxygenating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I hyperoxygenate?
could you hyperoxygenate?
could he hyperoxygenate?
could we hyperoxygenate?
could you hyperoxygenate?
could they hyperoxygenate? 	could I be hyperoxygenating?
could you be hyperoxygenating?
could he be hyperoxygenating?
could we be hyperoxygenating?
could you be hyperoxygenating?
could they be hyperoxygenating? 	could I have hyperoxygenated?
could you have hyperoxygenated?
could he have hyperoxygenated?
could we have hyperoxygenated?
could you have hyperoxygenated?
could they have hyperoxygenated? 	could I have been hyperoxygenating?
could you have been hyperoxygenating?
could he have been hyperoxygenating?
could we have been hyperoxygenating?
could you have been hyperoxygenating?
could they have been hyperoxygenating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I hyperoxygenate?
couldn't you hyperoxygenate?
couldn't he hyperoxygenate?
couldn't we hyperoxygenate?
couldn't you hyperoxygenate?
couldn't they hyperoxygenate? 	couldn't I be hyperoxygenating?
couldn't you be hyperoxygenating?
couldn't he be hyperoxygenating?
couldn't we be hyperoxygenating?
couldn't you be hyperoxygenating?
couldn't they be hyperoxygenating? 	couldn't I have hyperoxygenated?
couldn't you have hyperoxygenated?
couldn't he have hyperoxygenated?
couldn't we have hyperoxygenated?
couldn't you have hyperoxygenated?
couldn't they have hyperoxygenated? 	couldn't I have been hyperoxygenating?
couldn't you have been hyperoxygenating?
couldn't he have been hyperoxygenating?
couldn't we have been hyperoxygenating?
couldn't you have been hyperoxygenating?
couldn't they have been hyperoxygenating?