could annex
Regular verb: annex - annexed- annexed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could annex
you could annex
he could annex
we could annex
you could annex
they could annex 	I could be annexing
you could be annexing
he could be annexing
we could be annexing
you could be annexing
they could be annexing	I could have annexed
you could have annexed
he could have annexed
we could have annexed
you could have annexed
they could have annexed	I could have been annexing
you could have been annexing
he could have been annexing
we could have been annexing
you could have been annexing
they could have been annexing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't annex
you couldn't annex
he couldn't annex
we couldn't annex
you couldn't annex
they couldn't annex 	I couldn't be annexing
you couldn't be annexing
he couldn't be annexing
we couldn't be annexing
you couldn't be annexing
they couldn't be annexing	I couldn't have annexed
you couldn't have annexed
he couldn't have annexed
we couldn't have annexed
you couldn't have annexed
they couldn't have annexed	I couldn't have been annexing
you couldn't have been annexing
he couldn't have been annexing
we couldn't have been annexing
you couldn't have been annexing
they couldn't have been annexing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I annex?
could you annex?
could he annex?
could we annex?
could you annex?
could they annex? 	could I be annexing?
could you be annexing?
could he be annexing?
could we be annexing?
could you be annexing?
could they be annexing? 	could I have annexed?
could you have annexed?
could he have annexed?
could we have annexed?
could you have annexed?
could they have annexed? 	could I have been annexing?
could you have been annexing?
could he have been annexing?
could we have been annexing?
could you have been annexing?
could they have been annexing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I annex?
couldn't you annex?
couldn't he annex?
couldn't we annex?
couldn't you annex?
couldn't they annex? 	couldn't I be annexing?
couldn't you be annexing?
couldn't he be annexing?
couldn't we be annexing?
couldn't you be annexing?
couldn't they be annexing? 	couldn't I have annexed?
couldn't you have annexed?
couldn't he have annexed?
couldn't we have annexed?
couldn't you have annexed?
couldn't they have annexed? 	couldn't I have been annexing?
couldn't you have been annexing?
couldn't he have been annexing?
couldn't we have been annexing?
couldn't you have been annexing?
couldn't they have been annexing?