I can backdate you can backdate he can backdate we can backdate you can backdate they can backdate
Forma com V-ing
I can be backdating you can be backdating he can be backdating we can be backdating you can be backdating they can be backdating
Perfeito
I can have backdated you can have backdated he can have backdated we can have backdated you can have backdated they can have backdated
Perfeito com V-ing
I can have been backdating you can have been backdating he can have been backdating we can have been backdating you can have been backdating they can have been backdating
Negação
Forma simple
I cannot backdate you cannot backdate he cannot backdate we cannot backdate you cannot backdate they cannot backdate
Forma com V-ing
I cannot be backdating you cannot be backdating he cannot be backdating we cannot be backdating you cannot be backdating they cannot be backdating
Perfeito
I cannot have backdated you cannot have backdated he cannot have backdated we cannot have backdated you cannot have backdated they cannot have backdated
Perfeito com V-ing
I cannot have been backdating you cannot have been backdating he cannot have been backdating we cannot have been backdating you cannot have been backdating they cannot have been backdating
Forma interrogativa
Forma simple
can I backdate? can you backdate? can he backdate? can we backdate? can you backdate? can they backdate?
Forma com V-ing
can I be backdating? can you be backdating? can he be backdating? can we be backdating? can you be backdating? can they be backdating?
Perfeito
can I have backdated? can you have backdated? can he have backdated? can we have backdated? can you have backdated? can they have backdated?
Perfeito com V-ing
can I have been backdating? can you have been backdating? can he have been backdating? can we have been backdating? can you have been backdating? can they have been backdating?
Forma interro-Negação
Forma simple
can I not backdate? can you not backdate? can he not backdate? can we not backdate? can you not backdate? can they not backdate?
Forma com V-ing
can I not be backdating? can you not be backdating? can he not be backdating? can we not be backdating? can you not be backdating? can they not be backdating?
Perfeito
can I not have backdated? can you not have backdated? can he not have backdated? can we not have backdated? can you not have backdated? can they not have backdated?
Perfeito com V-ing
can I not have been backdating? can you not have been backdating? can he not have been backdating? can we not have been backdating? can you not have been backdating? can they not have been backdating?