English verb conjugation
COULD BEETLE

Regular verb: beetle - beetled - beetled

Affirmation

Simple form	V-ing form
I could beetle you could beetle he could beetle we could beetle you could beetle they could beetle	I could be beetling you could be beetling he could be beetling we could be beetling you could be beetling they could be beetling
Perfect	V-ing perfect
I could have beetled you could have beetled he could have beetled we could have beetled you could have beetled they could have beetled	I could have been beetling you could have been beetling he could have been beetling we could have been beetling you could have been beetling they could have been beetling

Negation

Simple form	V-ing form
I couldn't beetle you couldn't beetle he couldn't beetle we couldn't beetle you couldn't beetle they couldn't beetle	I couldn't be beetling you couldn't be beetling he couldn't be beetling we couldn't be beetling you couldn't be beetling they couldn't be beetling
Perfect	V-ing perfect
I couldn't have beetled you couldn't have beetled he couldn't have beetled we couldn't have beetled you couldn't have beetled they couldn't have beetled	I couldn't have been beetling you couldn't have been beetling he couldn't have been beetling we couldn't have been beetling you couldn't have been beetling they couldn't have been beetling

Interrogative form

Simple form	V-ing form
could I beetle? could you beetle? could he beetle? could we beetle? could you beetle? could they beetle?	could I be beetling? could you be beetling? could he be beetling? could we be beetling? could you be beetling? could they be beetling?
Perfect	V-ing perfect
could I have beetled? could you have beetled? could he have beetled? could we have beetled? could you have beetled? could they have beetled?	could I have been beetling? could you have been beetling? could he have been beetling? could we have been beetling? could you have been beetling? could they have been beetling?

Interro-negative form

Simple form	V-ing form
couldn't I beetle? couldn't you beetle? couldn't he beetle? couldn't we beetle? couldn't you beetle? couldn't they beetle?	couldn't I be beetling? couldn't you be beetling? couldn't he be beetling? couldn't we be beetling? couldn't you be beetling? couldn't they be beetling?
Perfect	V-ing perfect
couldn't I have beetled? couldn't you have beetled? couldn't he have beetled? couldn't we have beetled? couldn't you have beetled? couldn't they have beetled?	couldn't I have been beetling? couldn't you have been beetling? couldn't he have been beetling? couldn't we have been beetling? couldn't you have been beetling? couldn't they have been beetling?