English verb conjugation
COULD RUCK

Regular verb: ruck - rucked - rucked

Affirmation

Simple form	V-ing form
I could ruck you could ruck he could ruck we could ruck you could ruck they could ruck	I could be rucking you could be rucking he could be rucking we could be rucking you could be rucking they could be rucking
Perfect	V-ing perfect
I could have rucked you could have rucked he could have rucked we could have rucked you could have rucked they could have rucked	I could have been rucking you could have been rucking he could have been rucking we could have been rucking you could have been rucking they could have been rucking

Negation

Simple form	V-ing form
I couldn't ruck you couldn't ruck he couldn't ruck we couldn't ruck you couldn't ruck they couldn't ruck	I couldn't be rucking you couldn't be rucking he couldn't be rucking we couldn't be rucking you couldn't be rucking they couldn't be rucking
Perfect	V-ing perfect
I couldn't have rucked you couldn't have rucked he couldn't have rucked we couldn't have rucked you couldn't have rucked they couldn't have rucked	I couldn't have been rucking you couldn't have been rucking he couldn't have been rucking we couldn't have been rucking you couldn't have been rucking they couldn't have been rucking

Interrogative form

Simple form	V-ing form
could I ruck? could you ruck? could he ruck? could we ruck? could you ruck? could they ruck?	could I be rucking? could you be rucking? could he be rucking? could we be rucking? could you be rucking? could they be rucking?
Perfect	V-ing perfect
could I have rucked? could you have rucked? could he have rucked? could we have rucked? could you have rucked? could they have rucked?	could I have been rucking? could you have been rucking? could he have been rucking? could we have been rucking? could you have been rucking? could they have been rucking?

Interro-negative form

Simple form	V-ing form
couldn't I ruck? couldn't you ruck? couldn't he ruck? couldn't we ruck? couldn't you ruck? couldn't they ruck?	couldn't I be rucking? couldn't you be rucking? couldn't he be rucking? couldn't we be rucking? couldn't you be rucking? couldn't they be rucking?
Perfect	V-ing perfect
couldn't I have rucked? couldn't you have rucked? couldn't he have rucked? couldn't we have rucked? couldn't you have rucked? couldn't they have rucked?	couldn't I have been rucking? couldn't you have been rucking? couldn't he have been rucking? couldn't we have been rucking? couldn't you have been rucking? couldn't they have been rucking?