English verb conjugation
COULD HUMBUG

Regular verb: humbug - humbugged - humbugged

Affirmation

Simple form	V-ing form
I could humbug you could humbug he could humbug we could humbug you could humbug they could humbug	I could be humbugging you could be humbugging he could be humbugging we could be humbugging you could be humbugging they could be humbugging
Perfect	V-ing perfect
I could have humbugged you could have humbugged he could have humbugged we could have humbugged you could have humbugged they could have humbugged	I could have been humbugging you could have been humbugging he could have been humbugging we could have been humbugging you could have been humbugging they could have been humbugging

Negation

Simple form	V-ing form
I could not humbug you could not humbug he could not humbug we could not humbug you could not humbug they could not humbug	I could not be humbugging you could not be humbugging he could not be humbugging we could not be humbugging you could not be humbugging they could not be humbugging
Perfect	V-ing perfect
I could not have humbugged you could not have humbugged he could not have humbugged we could not have humbugged you could not have humbugged they could not have humbugged	I could not have been humbugging you could not have been humbugging he could not have been humbugging we could not have been humbugging you could not have been humbugging they could not have been humbugging

Interrogative form

Simple form	V-ing form
could I humbug? could you humbug? could he humbug? could we humbug? could you humbug? could they humbug?	could I be humbugging? could you be humbugging? could he be humbugging? could we be humbugging? could you be humbugging? could they be humbugging?
Perfect	V-ing perfect
could I have humbugged? could you have humbugged? could he have humbugged? could we have humbugged? could you have humbugged? could they have humbugged?	could I have been humbugging? could you have been humbugging? could he have been humbugging? could we have been humbugging? could you have been humbugging? could they have been humbugging?

Interro-negative form

Simple form	V-ing form
could I not humbug? could you not humbug? could he not humbug? could we not humbug? could you not humbug? could they not humbug?	could I not be humbugging? could you not be humbugging? could he not be humbugging? could we not be humbugging? could you not be humbugging? could they not be humbugging?
Perfect	V-ing perfect
could I not have humbugged? could you not have humbugged? could he not have humbugged? could we not have humbugged? could you not have humbugged? could they not have humbugged?	could I not have been humbugging? could you not have been humbugging? could he not have been humbugging? could we not have been humbugging? could you not have been humbugging? could they not have been humbugging?