English verb conjugation
COULD TRICYCLE

Regular verb: tricycle - tricycled - tricycled

Affirmation

Simple form	V-ing form
I could tricycle you could tricycle he could tricycle we could tricycle you could tricycle they could tricycle	I could be tricycling you could be tricycling he could be tricycling we could be tricycling you could be tricycling they could be tricycling
Perfect	V-ing perfect
I could have tricycled you could have tricycled he could have tricycled we could have tricycled you could have tricycled they could have tricycled	I could have been tricycling you could have been tricycling he could have been tricycling we could have been tricycling you could have been tricycling they could have been tricycling

Negation

Simple form	V-ing form
I couldn't tricycle you couldn't tricycle he couldn't tricycle we couldn't tricycle you couldn't tricycle they couldn't tricycle	I couldn't be tricycling you couldn't be tricycling he couldn't be tricycling we couldn't be tricycling you couldn't be tricycling they couldn't be tricycling
Perfect	V-ing perfect
I couldn't have tricycled you couldn't have tricycled he couldn't have tricycled we couldn't have tricycled you couldn't have tricycled they couldn't have tricycled	I couldn't have been tricycling you couldn't have been tricycling he couldn't have been tricycling we couldn't have been tricycling you couldn't have been tricycling they couldn't have been tricycling

Interrogative form

Simple form	V-ing form
could I tricycle? could you tricycle? could he tricycle? could we tricycle? could you tricycle? could they tricycle?	could I be tricycling? could you be tricycling? could he be tricycling? could we be tricycling? could you be tricycling? could they be tricycling?
Perfect	V-ing perfect
could I have tricycled? could you have tricycled? could he have tricycled? could we have tricycled? could you have tricycled? could they have tricycled?	could I have been tricycling? could you have been tricycling? could he have been tricycling? could we have been tricycling? could you have been tricycling? could they have been tricycling?

Interro-negative form

Simple form	V-ing form
couldn't I tricycle? couldn't you tricycle? couldn't he tricycle? couldn't we tricycle? couldn't you tricycle? couldn't they tricycle?	couldn't I be tricycling? couldn't you be tricycling? couldn't he be tricycling? couldn't we be tricycling? couldn't you be tricycling? couldn't they be tricycling?
Perfect	V-ing perfect
couldn't I have tricycled? couldn't you have tricycled? couldn't he have tricycled? couldn't we have tricycled? couldn't you have tricycled? couldn't they have tricycled?	couldn't I have been tricycling? couldn't you have been tricycling? couldn't he have been tricycling? couldn't we have been tricycling? couldn't you have been tricycling? couldn't they have been tricycling?