I can dull you can dull she can dull we can dull you can dull they can dull
Forma con V-ing
I can be dulling you can be dulling she can be dulling we can be dulling you can be dulling they can be dulling
Perfecto
I can have dulled you can have dulled she can have dulled we can have dulled you can have dulled they can have dulled
Perfecto con V-ing
I can have been dulling you can have been dulling she can have been dulling we can have been dulling you can have been dulling they can have been dulling
Negación
Forma simple
I can't dull you can't dull she can't dull we can't dull you can't dull they can't dull
Forma con V-ing
I can't be dulling you can't be dulling she can't be dulling we can't be dulling you can't be dulling they can't be dulling
Perfecto
I can't have dulled you can't have dulled she can't have dulled we can't have dulled you can't have dulled they can't have dulled
Perfecto con V-ing
I can't have been dulling you can't have been dulling she can't have been dulling we can't have been dulling you can't have been dulling they can't have been dulling
Forma interrogativa
Forma simple
can I dull? can you dull? can she dull? can we dull? can you dull? can they dull?
Forma con V-ing
can I be dulling? can you be dulling? can she be dulling? can we be dulling? can you be dulling? can they be dulling?
Perfecto
can I have dulled? can you have dulled? can she have dulled? can we have dulled? can you have dulled? can they have dulled?
Perfecto con V-ing
can I have been dulling? can you have been dulling? can she have been dulling? can we have been dulling? can you have been dulling? can they have been dulling?
Forma interro-negativa
Forma simple
can't I dull? can't you dull? can't she dull? can't we dull? can't you dull? can't they dull?
Forma con V-ing
can't I be dulling? can't you be dulling? can't she be dulling? can't we be dulling? can't you be dulling? can't they be dulling?
Perfecto
can't I have dulled? can't you have dulled? can't she have dulled? can't we have dulled? can't you have dulled? can't they have dulled?
Perfecto con V-ing
can't I have been dulling? can't you have been dulling? can't she have been dulling? can't we have been dulling? can't you have been dulling? can't they have been dulling?