could host
Regular verb: host - hosted- hosted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could host
you could host
he could host
we could host
you could host
they could host 	I could be hosting
you could be hosting
he could be hosting
we could be hosting
you could be hosting
they could be hosting	I could have hosted
you could have hosted
he could have hosted
we could have hosted
you could have hosted
they could have hosted	I could have been hosting
you could have been hosting
he could have been hosting
we could have been hosting
you could have been hosting
they could have been hosting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't host
you couldn't host
he couldn't host
we couldn't host
you couldn't host
they couldn't host 	I couldn't be hosting
you couldn't be hosting
he couldn't be hosting
we couldn't be hosting
you couldn't be hosting
they couldn't be hosting	I couldn't have hosted
you couldn't have hosted
he couldn't have hosted
we couldn't have hosted
you couldn't have hosted
they couldn't have hosted	I couldn't have been hosting
you couldn't have been hosting
he couldn't have been hosting
we couldn't have been hosting
you couldn't have been hosting
they couldn't have been hosting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I host?
could you host?
could he host?
could we host?
could you host?
could they host? 	could I be hosting?
could you be hosting?
could he be hosting?
could we be hosting?
could you be hosting?
could they be hosting? 	could I have hosted?
could you have hosted?
could he have hosted?
could we have hosted?
could you have hosted?
could they have hosted? 	could I have been hosting?
could you have been hosting?
could he have been hosting?
could we have been hosting?
could you have been hosting?
could they have been hosting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I host?
couldn't you host?
couldn't he host?
couldn't we host?
couldn't you host?
couldn't they host? 	couldn't I be hosting?
couldn't you be hosting?
couldn't he be hosting?
couldn't we be hosting?
couldn't you be hosting?
couldn't they be hosting? 	couldn't I have hosted?
couldn't you have hosted?
couldn't he have hosted?
couldn't we have hosted?
couldn't you have hosted?
couldn't they have hosted? 	couldn't I have been hosting?
couldn't you have been hosting?
couldn't he have been hosting?
couldn't we have been hosting?
couldn't you have been hosting?
couldn't they have been hosting?