English verb conjugation
COULD RUBBERNECK

Regular verb: rubberneck - rubbernecked - rubbernecked

Affirmation

Simple form	V-ing form
I could rubberneck you could rubberneck he could rubberneck we could rubberneck you could rubberneck they could rubberneck	I could be rubbernecking you could be rubbernecking he could be rubbernecking we could be rubbernecking you could be rubbernecking they could be rubbernecking
Perfect	V-ing perfect
I could have rubbernecked you could have rubbernecked he could have rubbernecked we could have rubbernecked you could have rubbernecked they could have rubbernecked	I could have been rubbernecking you could have been rubbernecking he could have been rubbernecking we could have been rubbernecking you could have been rubbernecking they could have been rubbernecking

Negation

Simple form	V-ing form
I couldn't rubberneck you couldn't rubberneck he couldn't rubberneck we couldn't rubberneck you couldn't rubberneck they couldn't rubberneck	I couldn't be rubbernecking you couldn't be rubbernecking he couldn't be rubbernecking we couldn't be rubbernecking you couldn't be rubbernecking they couldn't be rubbernecking
Perfect	V-ing perfect
I couldn't have rubbernecked you couldn't have rubbernecked he couldn't have rubbernecked we couldn't have rubbernecked you couldn't have rubbernecked they couldn't have rubbernecked	I couldn't have been rubbernecking you couldn't have been rubbernecking he couldn't have been rubbernecking we couldn't have been rubbernecking you couldn't have been rubbernecking they couldn't have been rubbernecking

Interrogative form

Simple form	V-ing form
could I rubberneck? could you rubberneck? could he rubberneck? could we rubberneck? could you rubberneck? could they rubberneck?	could I be rubbernecking? could you be rubbernecking? could he be rubbernecking? could we be rubbernecking? could you be rubbernecking? could they be rubbernecking?
Perfect	V-ing perfect
could I have rubbernecked? could you have rubbernecked? could he have rubbernecked? could we have rubbernecked? could you have rubbernecked? could they have rubbernecked?	could I have been rubbernecking? could you have been rubbernecking? could he have been rubbernecking? could we have been rubbernecking? could you have been rubbernecking? could they have been rubbernecking?

Interro-negative form

Simple form	V-ing form
couldn't I rubberneck? couldn't you rubberneck? couldn't he rubberneck? couldn't we rubberneck? couldn't you rubberneck? couldn't they rubberneck?	couldn't I be rubbernecking? couldn't you be rubbernecking? couldn't he be rubbernecking? couldn't we be rubbernecking? couldn't you be rubbernecking? couldn't they be rubbernecking?
Perfect	V-ing perfect
couldn't I have rubbernecked? couldn't you have rubbernecked? couldn't he have rubbernecked? couldn't we have rubbernecked? couldn't you have rubbernecked? couldn't they have rubbernecked?	couldn't I have been rubbernecking? couldn't you have been rubbernecking? couldn't he have been rubbernecking? couldn't we have been rubbernecking? couldn't you have been rubbernecking? couldn't they have been rubbernecking?