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