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 couldn't humbug you couldn't humbug he couldn't humbug we couldn't humbug you couldn't humbug they couldn't humbug	I couldn't be humbugging you couldn't be humbugging he couldn't be humbugging we couldn't be humbugging you couldn't be humbugging they couldn't be humbugging
Perfect	V-ing perfect
I couldn't have humbugged you couldn't have humbugged he couldn't have humbugged we couldn't have humbugged you couldn't have humbugged they couldn't have humbugged	I couldn't have been humbugging you couldn't have been humbugging he couldn't have been humbugging we couldn't have been humbugging you couldn't have been humbugging they couldn't 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
couldn't I humbug? couldn't you humbug? couldn't he humbug? couldn't we humbug? couldn't you humbug? couldn't they humbug?	couldn't I be humbugging? couldn't you be humbugging? couldn't he be humbugging? couldn't we be humbugging? couldn't you be humbugging? couldn't they be humbugging?
Perfect	V-ing perfect
couldn't I have humbugged? couldn't you have humbugged? couldn't he have humbugged? couldn't we have humbugged? couldn't you have humbugged? couldn't they have humbugged?	couldn't I have been humbugging? couldn't you have been humbugging? couldn't he have been humbugging? couldn't we have been humbugging? couldn't you have been humbugging? couldn't they have been humbugging?