could semaphore
Regular verb: semaphore - semaphored- semaphored

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could semaphore
you could semaphore
she could semaphore
we could semaphore
you could semaphore
they could semaphore 	I could be semaphoring
you could be semaphoring
she could be semaphoring
we could be semaphoring
you could be semaphoring
they could be semaphoring	I could have semaphored
you could have semaphored
she could have semaphored
we could have semaphored
you could have semaphored
they could have semaphored	I could have been semaphoring
you could have been semaphoring
she could have been semaphoring
we could have been semaphoring
you could have been semaphoring
they could have been semaphoring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't semaphore
you couldn't semaphore
she couldn't semaphore
we couldn't semaphore
you couldn't semaphore
they couldn't semaphore 	I couldn't be semaphoring
you couldn't be semaphoring
she couldn't be semaphoring
we couldn't be semaphoring
you couldn't be semaphoring
they couldn't be semaphoring	I couldn't have semaphored
you couldn't have semaphored
she couldn't have semaphored
we couldn't have semaphored
you couldn't have semaphored
they couldn't have semaphored	I couldn't have been semaphoring
you couldn't have been semaphoring
she couldn't have been semaphoring
we couldn't have been semaphoring
you couldn't have been semaphoring
they couldn't have been semaphoring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I semaphore?
could you semaphore?
could she semaphore?
could we semaphore?
could you semaphore?
could they semaphore? 	could I be semaphoring?
could you be semaphoring?
could she be semaphoring?
could we be semaphoring?
could you be semaphoring?
could they be semaphoring? 	could I have semaphored?
could you have semaphored?
could she have semaphored?
could we have semaphored?
could you have semaphored?
could they have semaphored? 	could I have been semaphoring?
could you have been semaphoring?
could she have been semaphoring?
could we have been semaphoring?
could you have been semaphoring?
could they have been semaphoring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I semaphore?
couldn't you semaphore?
couldn't she semaphore?
couldn't we semaphore?
couldn't you semaphore?
couldn't they semaphore? 	couldn't I be semaphoring?
couldn't you be semaphoring?
couldn't she be semaphoring?
couldn't we be semaphoring?
couldn't you be semaphoring?
couldn't they be semaphoring? 	couldn't I have semaphored?
couldn't you have semaphored?
couldn't she have semaphored?
couldn't we have semaphored?
couldn't you have semaphored?
couldn't they have semaphored? 	couldn't I have been semaphoring?
couldn't you have been semaphoring?
couldn't she have been semaphoring?
couldn't we have been semaphoring?
couldn't you have been semaphoring?
couldn't they have been semaphoring?