could timetable
Verbo regular: timetable - timetabled- timetabled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could timetable
you could timetable
she could timetable
we could timetable
you could timetable
they could timetable 	I could be timetabling
you could be timetabling
she could be timetabling
we could be timetabling
you could be timetabling
they could be timetabling	I could have timetabled
you could have timetabled
she could have timetabled
we could have timetabled
you could have timetabled
they could have timetabled	I could have been timetabling
you could have been timetabling
she could have been timetabling
we could have been timetabling
you could have been timetabling
they could have been timetabling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't timetable
you couldn't timetable
she couldn't timetable
we couldn't timetable
you couldn't timetable
they couldn't timetable 	I couldn't be timetabling
you couldn't be timetabling
she couldn't be timetabling
we couldn't be timetabling
you couldn't be timetabling
they couldn't be timetabling	I couldn't have timetabled
you couldn't have timetabled
she couldn't have timetabled
we couldn't have timetabled
you couldn't have timetabled
they couldn't have timetabled	I couldn't have been timetabling
you couldn't have been timetabling
she couldn't have been timetabling
we couldn't have been timetabling
you couldn't have been timetabling
they couldn't have been timetabling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I timetable?
could you timetable?
could she timetable?
could we timetable?
could you timetable?
could they timetable? 	could I be timetabling?
could you be timetabling?
could she be timetabling?
could we be timetabling?
could you be timetabling?
could they be timetabling? 	could I have timetabled?
could you have timetabled?
could she have timetabled?
could we have timetabled?
could you have timetabled?
could they have timetabled? 	could I have been timetabling?
could you have been timetabling?
could she have been timetabling?
could we have been timetabling?
could you have been timetabling?
could they have been timetabling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I timetable?
couldn't you timetable?
couldn't she timetable?
couldn't we timetable?
couldn't you timetable?
couldn't they timetable? 	couldn't I be timetabling?
couldn't you be timetabling?
couldn't she be timetabling?
couldn't we be timetabling?
couldn't you be timetabling?
couldn't they be timetabling? 	couldn't I have timetabled?
couldn't you have timetabled?
couldn't she have timetabled?
couldn't we have timetabled?
couldn't you have timetabled?
couldn't they have timetabled? 	couldn't I have been timetabling?
couldn't you have been timetabling?
couldn't she have been timetabling?
couldn't we have been timetabling?
couldn't you have been timetabling?
couldn't they have been timetabling?