I can tack you can tack she can tack we can tack you can tack they can tack
Forma con V-ing
I can be tacking you can be tacking she can be tacking we can be tacking you can be tacking they can be tacking
Perfecto
I can have tacked you can have tacked she can have tacked we can have tacked you can have tacked they can have tacked
Perfecto con V-ing
I can have been tacking you can have been tacking she can have been tacking we can have been tacking you can have been tacking they can have been tacking
Negación
Forma simple
I can't tack you can't tack she can't tack we can't tack you can't tack they can't tack
Forma con V-ing
I can't be tacking you can't be tacking she can't be tacking we can't be tacking you can't be tacking they can't be tacking
Perfecto
I can't have tacked you can't have tacked she can't have tacked we can't have tacked you can't have tacked they can't have tacked
Perfecto con V-ing
I can't have been tacking you can't have been tacking she can't have been tacking we can't have been tacking you can't have been tacking they can't have been tacking
Forma interrogativa
Forma simple
can I tack? can you tack? can she tack? can we tack? can you tack? can they tack?
Forma con V-ing
can I be tacking? can you be tacking? can she be tacking? can we be tacking? can you be tacking? can they be tacking?
Perfecto
can I have tacked? can you have tacked? can she have tacked? can we have tacked? can you have tacked? can they have tacked?
Perfecto con V-ing
can I have been tacking? can you have been tacking? can she have been tacking? can we have been tacking? can you have been tacking? can they have been tacking?
Forma interro-negativa
Forma simple
can't I tack? can't you tack? can't she tack? can't we tack? can't you tack? can't they tack?
Forma con V-ing
can't I be tacking? can't you be tacking? can't she be tacking? can't we be tacking? can't you be tacking? can't they be tacking?
Perfecto
can't I have tacked? can't you have tacked? can't she have tacked? can't we have tacked? can't you have tacked? can't they have tacked?
Perfecto con V-ing
can't I have been tacking? can't you have been tacking? can't she have been tacking? can't we have been tacking? can't you have been tacking? can't they have been tacking?