could mount
Regular verb: mount - mounted- mounted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could mount
you could mount
she could mount
we could mount
you could mount
they could mount 	I could be mounting
you could be mounting
she could be mounting
we could be mounting
you could be mounting
they could be mounting	I could have mounted
you could have mounted
she could have mounted
we could have mounted
you could have mounted
they could have mounted	I could have been mounting
you could have been mounting
she could have been mounting
we could have been mounting
you could have been mounting
they could have been mounting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't mount
you couldn't mount
she couldn't mount
we couldn't mount
you couldn't mount
they couldn't mount 	I couldn't be mounting
you couldn't be mounting
she couldn't be mounting
we couldn't be mounting
you couldn't be mounting
they couldn't be mounting	I couldn't have mounted
you couldn't have mounted
she couldn't have mounted
we couldn't have mounted
you couldn't have mounted
they couldn't have mounted	I couldn't have been mounting
you couldn't have been mounting
she couldn't have been mounting
we couldn't have been mounting
you couldn't have been mounting
they couldn't have been mounting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I mount?
could you mount?
could she mount?
could we mount?
could you mount?
could they mount? 	could I be mounting?
could you be mounting?
could she be mounting?
could we be mounting?
could you be mounting?
could they be mounting? 	could I have mounted?
could you have mounted?
could she have mounted?
could we have mounted?
could you have mounted?
could they have mounted? 	could I have been mounting?
could you have been mounting?
could she have been mounting?
could we have been mounting?
could you have been mounting?
could they have been mounting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I mount?
couldn't you mount?
couldn't she mount?
couldn't we mount?
couldn't you mount?
couldn't they mount? 	couldn't I be mounting?
couldn't you be mounting?
couldn't she be mounting?
couldn't we be mounting?
couldn't you be mounting?
couldn't they be mounting? 	couldn't I have mounted?
couldn't you have mounted?
couldn't she have mounted?
couldn't we have mounted?
couldn't you have mounted?
couldn't they have mounted? 	couldn't I have been mounting?
couldn't you have been mounting?
couldn't she have been mounting?
couldn't we have been mounting?
couldn't you have been mounting?
couldn't they have been mounting?