English verb conjugation
COULD SNAFU

Regular verb: snafu - snafued - snafued

Affirmation

Simple form	V-ing form
I could snafu you could snafu he could snafu we could snafu you could snafu they could snafu	I could be snafuing you could be snafuing he could be snafuing we could be snafuing you could be snafuing they could be snafuing
Perfect	V-ing perfect
I could have snafued you could have snafued he could have snafued we could have snafued you could have snafued they could have snafued	I could have been snafuing you could have been snafuing he could have been snafuing we could have been snafuing you could have been snafuing they could have been snafuing

Negation

Simple form	V-ing form
I could not snafu you could not snafu he could not snafu we could not snafu you could not snafu they could not snafu	I could not be snafuing you could not be snafuing he could not be snafuing we could not be snafuing you could not be snafuing they could not be snafuing
Perfect	V-ing perfect
I could not have snafued you could not have snafued he could not have snafued we could not have snafued you could not have snafued they could not have snafued	I could not have been snafuing you could not have been snafuing he could not have been snafuing we could not have been snafuing you could not have been snafuing they could not have been snafuing

Interrogative form

Simple form	V-ing form
could I snafu? could you snafu? could he snafu? could we snafu? could you snafu? could they snafu?	could I be snafuing? could you be snafuing? could he be snafuing? could we be snafuing? could you be snafuing? could they be snafuing?
Perfect	V-ing perfect
could I have snafued? could you have snafued? could he have snafued? could we have snafued? could you have snafued? could they have snafued?	could I have been snafuing? could you have been snafuing? could he have been snafuing? could we have been snafuing? could you have been snafuing? could they have been snafuing?

Interro-negative form

Simple form	V-ing form
could I not snafu? could you not snafu? could he not snafu? could we not snafu? could you not snafu? could they not snafu?	could I not be snafuing? could you not be snafuing? could he not be snafuing? could we not be snafuing? could you not be snafuing? could they not be snafuing?
Perfect	V-ing perfect
could I not have snafued? could you not have snafued? could he not have snafued? could we not have snafued? could you not have snafued? could they not have snafued?	could I not have been snafuing? could you not have been snafuing? could he not have been snafuing? could we not have been snafuing? could you not have been snafuing? could they not have been snafuing?