English verb conjugation
COULD FUCK

Regular verb: fuck - fucked - fucked

Affirmation

Simple form	V-ing form
I could fuck you could fuck he could fuck we could fuck you could fuck they could fuck	I could be fucking you could be fucking he could be fucking we could be fucking you could be fucking they could be fucking
Perfect	V-ing perfect
I could have fucked you could have fucked he could have fucked we could have fucked you could have fucked they could have fucked	I could have been fucking you could have been fucking he could have been fucking we could have been fucking you could have been fucking they could have been fucking

Negation

Simple form	V-ing form
I could not fuck you could not fuck he could not fuck we could not fuck you could not fuck they could not fuck	I could not be fucking you could not be fucking he could not be fucking we could not be fucking you could not be fucking they could not be fucking
Perfect	V-ing perfect
I could not have fucked you could not have fucked he could not have fucked we could not have fucked you could not have fucked they could not have fucked	I could not have been fucking you could not have been fucking he could not have been fucking we could not have been fucking you could not have been fucking they could not have been fucking

Interrogative form

Simple form	V-ing form
could I fuck? could you fuck? could he fuck? could we fuck? could you fuck? could they fuck?	could I be fucking? could you be fucking? could he be fucking? could we be fucking? could you be fucking? could they be fucking?
Perfect	V-ing perfect
could I have fucked? could you have fucked? could he have fucked? could we have fucked? could you have fucked? could they have fucked?	could I have been fucking? could you have been fucking? could he have been fucking? could we have been fucking? could you have been fucking? could they have been fucking?

Interro-negative form

Simple form	V-ing form
could I not fuck? could you not fuck? could he not fuck? could we not fuck? could you not fuck? could they not fuck?	could I not be fucking? could you not be fucking? could he not be fucking? could we not be fucking? could you not be fucking? could they not be fucking?
Perfect	V-ing perfect
could I not have fucked? could you not have fucked? could he not have fucked? could we not have fucked? could you not have fucked? could they not have fucked?	could I not have been fucking? could you not have been fucking? could he not have been fucking? could we not have been fucking? could you not have been fucking? could they not have been fucking?