English verb conjugation
COULD CIRCUMFUSE

Regular verb: circumfuse - circumfused - circumfused

Affirmation

Simple form	V-ing form
I could circumfuse you could circumfuse he could circumfuse we could circumfuse you could circumfuse they could circumfuse	I could be circumfusing you could be circumfusing he could be circumfusing we could be circumfusing you could be circumfusing they could be circumfusing
Perfect	V-ing perfect
I could have circumfused you could have circumfused he could have circumfused we could have circumfused you could have circumfused they could have circumfused	I could have been circumfusing you could have been circumfusing he could have been circumfusing we could have been circumfusing you could have been circumfusing they could have been circumfusing

Negation

Simple form	V-ing form
I couldn't circumfuse you couldn't circumfuse he couldn't circumfuse we couldn't circumfuse you couldn't circumfuse they couldn't circumfuse	I couldn't be circumfusing you couldn't be circumfusing he couldn't be circumfusing we couldn't be circumfusing you couldn't be circumfusing they couldn't be circumfusing
Perfect	V-ing perfect
I couldn't have circumfused you couldn't have circumfused he couldn't have circumfused we couldn't have circumfused you couldn't have circumfused they couldn't have circumfused	I couldn't have been circumfusing you couldn't have been circumfusing he couldn't have been circumfusing we couldn't have been circumfusing you couldn't have been circumfusing they couldn't have been circumfusing

Interrogative form

Simple form	V-ing form
could I circumfuse? could you circumfuse? could he circumfuse? could we circumfuse? could you circumfuse? could they circumfuse?	could I be circumfusing? could you be circumfusing? could he be circumfusing? could we be circumfusing? could you be circumfusing? could they be circumfusing?
Perfect	V-ing perfect
could I have circumfused? could you have circumfused? could he have circumfused? could we have circumfused? could you have circumfused? could they have circumfused?	could I have been circumfusing? could you have been circumfusing? could he have been circumfusing? could we have been circumfusing? could you have been circumfusing? could they have been circumfusing?

Interro-negative form

Simple form	V-ing form
couldn't I circumfuse? couldn't you circumfuse? couldn't he circumfuse? couldn't we circumfuse? couldn't you circumfuse? couldn't they circumfuse?	couldn't I be circumfusing? couldn't you be circumfusing? couldn't he be circumfusing? couldn't we be circumfusing? couldn't you be circumfusing? couldn't they be circumfusing?
Perfect	V-ing perfect
couldn't I have circumfused? couldn't you have circumfused? couldn't he have circumfused? couldn't we have circumfused? couldn't you have circumfused? couldn't they have circumfused?	couldn't I have been circumfusing? couldn't you have been circumfusing? couldn't he have been circumfusing? couldn't we have been circumfusing? couldn't you have been circumfusing? couldn't they have been circumfusing?