English verb conjugation
COULD BOTTOM

Regular verb: bottom - bottomed - bottomed

Affirmation

Simple form	V-ing form
I could bottom you could bottom he could bottom we could bottom you could bottom they could bottom	I could be bottoming you could be bottoming he could be bottoming we could be bottoming you could be bottoming they could be bottoming
Perfect	V-ing perfect
I could have bottomed you could have bottomed he could have bottomed we could have bottomed you could have bottomed they could have bottomed	I could have been bottoming you could have been bottoming he could have been bottoming we could have been bottoming you could have been bottoming they could have been bottoming

Negation

Simple form	V-ing form
I couldn't bottom you couldn't bottom he couldn't bottom we couldn't bottom you couldn't bottom they couldn't bottom	I couldn't be bottoming you couldn't be bottoming he couldn't be bottoming we couldn't be bottoming you couldn't be bottoming they couldn't be bottoming
Perfect	V-ing perfect
I couldn't have bottomed you couldn't have bottomed he couldn't have bottomed we couldn't have bottomed you couldn't have bottomed they couldn't have bottomed	I couldn't have been bottoming you couldn't have been bottoming he couldn't have been bottoming we couldn't have been bottoming you couldn't have been bottoming they couldn't have been bottoming

Interrogative form

Simple form	V-ing form
could I bottom? could you bottom? could he bottom? could we bottom? could you bottom? could they bottom?	could I be bottoming? could you be bottoming? could he be bottoming? could we be bottoming? could you be bottoming? could they be bottoming?
Perfect	V-ing perfect
could I have bottomed? could you have bottomed? could he have bottomed? could we have bottomed? could you have bottomed? could they have bottomed?	could I have been bottoming? could you have been bottoming? could he have been bottoming? could we have been bottoming? could you have been bottoming? could they have been bottoming?

Interro-negative form

Simple form	V-ing form
couldn't I bottom? couldn't you bottom? couldn't he bottom? couldn't we bottom? couldn't you bottom? couldn't they bottom?	couldn't I be bottoming? couldn't you be bottoming? couldn't he be bottoming? couldn't we be bottoming? couldn't you be bottoming? couldn't they be bottoming?
Perfect	V-ing perfect
couldn't I have bottomed? couldn't you have bottomed? couldn't he have bottomed? couldn't we have bottomed? couldn't you have bottomed? couldn't they have bottomed?	couldn't I have been bottoming? couldn't you have been bottoming? couldn't he have been bottoming? couldn't we have been bottoming? couldn't you have been bottoming? couldn't they have been bottoming?