English verb conjugation
COULD SLEEK

Regular verb: sleek - sleeked - sleeked

Affirmation

Simple form	V-ing form
I could sleek you could sleek he could sleek we could sleek you could sleek they could sleek	I could be sleeking you could be sleeking he could be sleeking we could be sleeking you could be sleeking they could be sleeking
Perfect	V-ing perfect
I could have sleeked you could have sleeked he could have sleeked we could have sleeked you could have sleeked they could have sleeked	I could have been sleeking you could have been sleeking he could have been sleeking we could have been sleeking you could have been sleeking they could have been sleeking

Negation

Simple form	V-ing form
I couldn't sleek you couldn't sleek he couldn't sleek we couldn't sleek you couldn't sleek they couldn't sleek	I couldn't be sleeking you couldn't be sleeking he couldn't be sleeking we couldn't be sleeking you couldn't be sleeking they couldn't be sleeking
Perfect	V-ing perfect
I couldn't have sleeked you couldn't have sleeked he couldn't have sleeked we couldn't have sleeked you couldn't have sleeked they couldn't have sleeked	I couldn't have been sleeking you couldn't have been sleeking he couldn't have been sleeking we couldn't have been sleeking you couldn't have been sleeking they couldn't have been sleeking

Interrogative form

Simple form	V-ing form
could I sleek? could you sleek? could he sleek? could we sleek? could you sleek? could they sleek?	could I be sleeking? could you be sleeking? could he be sleeking? could we be sleeking? could you be sleeking? could they be sleeking?
Perfect	V-ing perfect
could I have sleeked? could you have sleeked? could he have sleeked? could we have sleeked? could you have sleeked? could they have sleeked?	could I have been sleeking? could you have been sleeking? could he have been sleeking? could we have been sleeking? could you have been sleeking? could they have been sleeking?

Interro-negative form

Simple form	V-ing form
couldn't I sleek? couldn't you sleek? couldn't he sleek? couldn't we sleek? couldn't you sleek? couldn't they sleek?	couldn't I be sleeking? couldn't you be sleeking? couldn't he be sleeking? couldn't we be sleeking? couldn't you be sleeking? couldn't they be sleeking?
Perfect	V-ing perfect
couldn't I have sleeked? couldn't you have sleeked? couldn't he have sleeked? couldn't we have sleeked? couldn't you have sleeked? couldn't they have sleeked?	couldn't I have been sleeking? couldn't you have been sleeking? couldn't he have been sleeking? couldn't we have been sleeking? couldn't you have been sleeking? couldn't they have been sleeking?