I can estimate you can estimate she can estimate we can estimate you can estimate they can estimate
Forma com V-ing
I can be estimating you can be estimating she can be estimating we can be estimating you can be estimating they can be estimating
Perfeito
I can have estimated you can have estimated she can have estimated we can have estimated you can have estimated they can have estimated
Perfeito com V-ing
I can have been estimating you can have been estimating she can have been estimating we can have been estimating you can have been estimating they can have been estimating
Negação
Forma simple
I can't estimate you can't estimate she can't estimate we can't estimate you can't estimate they can't estimate
Forma com V-ing
I can't be estimating you can't be estimating she can't be estimating we can't be estimating you can't be estimating they can't be estimating
Perfeito
I can't have estimated you can't have estimated she can't have estimated we can't have estimated you can't have estimated they can't have estimated
Perfeito com V-ing
I can't have been estimating you can't have been estimating she can't have been estimating we can't have been estimating you can't have been estimating they can't have been estimating
Forma interrogativa
Forma simple
can I estimate? can you estimate? can she estimate? can we estimate? can you estimate? can they estimate?
Forma com V-ing
can I be estimating? can you be estimating? can she be estimating? can we be estimating? can you be estimating? can they be estimating?
Perfeito
can I have estimated? can you have estimated? can she have estimated? can we have estimated? can you have estimated? can they have estimated?
Perfeito com V-ing
can I have been estimating? can you have been estimating? can she have been estimating? can we have been estimating? can you have been estimating? can they have been estimating?
Forma interro-Negação
Forma simple
can't I estimate? can't you estimate? can't she estimate? can't we estimate? can't you estimate? can't they estimate?
Forma com V-ing
can't I be estimating? can't you be estimating? can't she be estimating? can't we be estimating? can't you be estimating? can't they be estimating?
Perfeito
can't I have estimated? can't you have estimated? can't she have estimated? can't we have estimated? can't you have estimated? can't they have estimated?
Perfeito com V-ing
can't I have been estimating? can't you have been estimating? can't she have been estimating? can't we have been estimating? can't you have been estimating? can't they have been estimating?