I could preaddress you could preaddress he could preaddress we could preaddress you could preaddress they could preaddress
V-ing form
I could be preaddressing you could be preaddressing he could be preaddressing we could be preaddressing you could be preaddressing they could be preaddressing
Perfect
I could have preaddressed you could have preaddressed he could have preaddressed we could have preaddressed you could have preaddressed they could have preaddressed
V-ing perfect
I could have been preaddressing you could have been preaddressing he could have been preaddressing we could have been preaddressing you could have been preaddressing they could have been preaddressing
Negation
Simple form
I couldn't preaddress you couldn't preaddress he couldn't preaddress we couldn't preaddress you couldn't preaddress they couldn't preaddress
V-ing form
I couldn't be preaddressing you couldn't be preaddressing he couldn't be preaddressing we couldn't be preaddressing you couldn't be preaddressing they couldn't be preaddressing
Perfect
I couldn't have preaddressed you couldn't have preaddressed he couldn't have preaddressed we couldn't have preaddressed you couldn't have preaddressed they couldn't have preaddressed
V-ing perfect
I couldn't have been preaddressing you couldn't have been preaddressing he couldn't have been preaddressing we couldn't have been preaddressing you couldn't have been preaddressing they couldn't have been preaddressing
Interrogative form
Simple form
could I preaddress? could you preaddress? could he preaddress? could we preaddress? could you preaddress? could they preaddress?
V-ing form
could I be preaddressing? could you be preaddressing? could he be preaddressing? could we be preaddressing? could you be preaddressing? could they be preaddressing?
Perfect
could I have preaddressed? could you have preaddressed? could he have preaddressed? could we have preaddressed? could you have preaddressed? could they have preaddressed?
V-ing perfect
could I have been preaddressing? could you have been preaddressing? could he have been preaddressing? could we have been preaddressing? could you have been preaddressing? could they have been preaddressing?
Interro-negative form
Simple form
couldn't I preaddress? couldn't you preaddress? couldn't he preaddress? couldn't we preaddress? couldn't you preaddress? couldn't they preaddress?
V-ing form
couldn't I be preaddressing? couldn't you be preaddressing? couldn't he be preaddressing? couldn't we be preaddressing? couldn't you be preaddressing? couldn't they be preaddressing?
Perfect
couldn't I have preaddressed? couldn't you have preaddressed? couldn't he have preaddressed? couldn't we have preaddressed? couldn't you have preaddressed? couldn't they have preaddressed?
V-ing perfect
couldn't I have been preaddressing? couldn't you have been preaddressing? couldn't he have been preaddressing? couldn't we have been preaddressing? couldn't you have been preaddressing? couldn't they have been preaddressing?