English verb conjugation
COULD SPECK

Regular verb: speck - specked - specked

Affirmation

Simple form	V-ing form
I could speck you could speck she could speck we could speck you could speck they could speck	I could be specking you could be specking she could be specking we could be specking you could be specking they could be specking
Perfect	V-ing perfect
I could have specked you could have specked she could have specked we could have specked you could have specked they could have specked	I could have been specking you could have been specking she could have been specking we could have been specking you could have been specking they could have been specking

Negation

Simple form	V-ing form
I couldn't speck you couldn't speck she couldn't speck we couldn't speck you couldn't speck they couldn't speck	I couldn't be specking you couldn't be specking she couldn't be specking we couldn't be specking you couldn't be specking they couldn't be specking
Perfect	V-ing perfect
I couldn't have specked you couldn't have specked she couldn't have specked we couldn't have specked you couldn't have specked they couldn't have specked	I couldn't have been specking you couldn't have been specking she couldn't have been specking we couldn't have been specking you couldn't have been specking they couldn't have been specking

Interrogative form

Simple form	V-ing form
could I speck? could you speck? could she speck? could we speck? could you speck? could they speck?	could I be specking? could you be specking? could she be specking? could we be specking? could you be specking? could they be specking?
Perfect	V-ing perfect
could I have specked? could you have specked? could she have specked? could we have specked? could you have specked? could they have specked?	could I have been specking? could you have been specking? could she have been specking? could we have been specking? could you have been specking? could they have been specking?

Interro-negative form

Simple form	V-ing form
couldn't I speck? couldn't you speck? couldn't she speck? couldn't we speck? couldn't you speck? couldn't they speck?	couldn't I be specking? couldn't you be specking? couldn't she be specking? couldn't we be specking? couldn't you be specking? couldn't they be specking?
Perfect	V-ing perfect
couldn't I have specked? couldn't you have specked? couldn't she have specked? couldn't we have specked? couldn't you have specked? couldn't they have specked?	couldn't I have been specking? couldn't you have been specking? couldn't she have been specking? couldn't we have been specking? couldn't you have been specking? couldn't they have been specking?