English verb conjugation
COULD BEETLE

Regular verb: beetle - beetled - beetled

Affirmation

Simple form	V-ing form
I could beetle you could beetle she could beetle we could beetle you could beetle they could beetle	I could be beetling you could be beetling she 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 she 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 she 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 she 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 she 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 she 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 she 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 she beetle? could we beetle? could you beetle? could they beetle?	could I be beetling? could you be beetling? could she 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 she 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 she 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 she 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 she 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 she 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 she have been beetling? couldn't we have been beetling? couldn't you have been beetling? couldn't they have been beetling?