English verb conjugation
COULD TRUCK

Regular verb: truck - trucked - trucked

Affirmation

Simple form	V-ing form
I could truck you could truck he could truck we could truck you could truck they could truck	I could be trucking you could be trucking he could be trucking we could be trucking you could be trucking they could be trucking
Perfect	V-ing perfect
I could have trucked you could have trucked he could have trucked we could have trucked you could have trucked they could have trucked	I could have been trucking you could have been trucking he could have been trucking we could have been trucking you could have been trucking they could have been trucking

Negation

Simple form	V-ing form
I couldn't truck you couldn't truck he couldn't truck we couldn't truck you couldn't truck they couldn't truck	I couldn't be trucking you couldn't be trucking he couldn't be trucking we couldn't be trucking you couldn't be trucking they couldn't be trucking
Perfect	V-ing perfect
I couldn't have trucked you couldn't have trucked he couldn't have trucked we couldn't have trucked you couldn't have trucked they couldn't have trucked	I couldn't have been trucking you couldn't have been trucking he couldn't have been trucking we couldn't have been trucking you couldn't have been trucking they couldn't have been trucking

Interrogative form

Simple form	V-ing form
could I truck? could you truck? could he truck? could we truck? could you truck? could they truck?	could I be trucking? could you be trucking? could he be trucking? could we be trucking? could you be trucking? could they be trucking?
Perfect	V-ing perfect
could I have trucked? could you have trucked? could he have trucked? could we have trucked? could you have trucked? could they have trucked?	could I have been trucking? could you have been trucking? could he have been trucking? could we have been trucking? could you have been trucking? could they have been trucking?

Interro-negative form

Simple form	V-ing form
couldn't I truck? couldn't you truck? couldn't he truck? couldn't we truck? couldn't you truck? couldn't they truck?	couldn't I be trucking? couldn't you be trucking? couldn't he be trucking? couldn't we be trucking? couldn't you be trucking? couldn't they be trucking?
Perfect	V-ing perfect
couldn't I have trucked? couldn't you have trucked? couldn't he have trucked? couldn't we have trucked? couldn't you have trucked? couldn't they have trucked?	couldn't I have been trucking? couldn't you have been trucking? couldn't he have been trucking? couldn't we have been trucking? couldn't you have been trucking? couldn't they have been trucking?