I could obfuscate you could obfuscate she could obfuscate we could obfuscate you could obfuscate they could obfuscate
V-ing form
I could be obfuscating you could be obfuscating she could be obfuscating we could be obfuscating you could be obfuscating they could be obfuscating
Perfect
I could have obfuscated you could have obfuscated she could have obfuscated we could have obfuscated you could have obfuscated they could have obfuscated
V-ing perfect
I could have been obfuscating you could have been obfuscating she could have been obfuscating we could have been obfuscating you could have been obfuscating they could have been obfuscating
Negation
Simple form
I couldn't obfuscate you couldn't obfuscate she couldn't obfuscate we couldn't obfuscate you couldn't obfuscate they couldn't obfuscate
V-ing form
I couldn't be obfuscating you couldn't be obfuscating she couldn't be obfuscating we couldn't be obfuscating you couldn't be obfuscating they couldn't be obfuscating
Perfect
I couldn't have obfuscated you couldn't have obfuscated she couldn't have obfuscated we couldn't have obfuscated you couldn't have obfuscated they couldn't have obfuscated
V-ing perfect
I couldn't have been obfuscating you couldn't have been obfuscating she couldn't have been obfuscating we couldn't have been obfuscating you couldn't have been obfuscating they couldn't have been obfuscating
Interrogative form
Simple form
could I obfuscate? could you obfuscate? could she obfuscate? could we obfuscate? could you obfuscate? could they obfuscate?
V-ing form
could I be obfuscating? could you be obfuscating? could she be obfuscating? could we be obfuscating? could you be obfuscating? could they be obfuscating?
Perfect
could I have obfuscated? could you have obfuscated? could she have obfuscated? could we have obfuscated? could you have obfuscated? could they have obfuscated?
V-ing perfect
could I have been obfuscating? could you have been obfuscating? could she have been obfuscating? could we have been obfuscating? could you have been obfuscating? could they have been obfuscating?
Interro-negative form
Simple form
couldn't I obfuscate? couldn't you obfuscate? couldn't she obfuscate? couldn't we obfuscate? couldn't you obfuscate? couldn't they obfuscate?
V-ing form
couldn't I be obfuscating? couldn't you be obfuscating? couldn't she be obfuscating? couldn't we be obfuscating? couldn't you be obfuscating? couldn't they be obfuscating?
Perfect
couldn't I have obfuscated? couldn't you have obfuscated? couldn't she have obfuscated? couldn't we have obfuscated? couldn't you have obfuscated? couldn't they have obfuscated?
V-ing perfect
couldn't I have been obfuscating? couldn't you have been obfuscating? couldn't she have been obfuscating? couldn't we have been obfuscating? couldn't you have been obfuscating? couldn't they have been obfuscating?