English verb conjugation
COULD RECYCLE

Regular verb: recycle - recycled - recycled

Affirmation

Simple form	V-ing form
I could recycle you could recycle he could recycle we could recycle you could recycle they could recycle	I could be recycling you could be recycling he could be recycling we could be recycling you could be recycling they could be recycling
Perfect	V-ing perfect
I could have recycled you could have recycled he could have recycled we could have recycled you could have recycled they could have recycled	I could have been recycling you could have been recycling he could have been recycling we could have been recycling you could have been recycling they could have been recycling

Negation

Simple form	V-ing form
I couldn't recycle you couldn't recycle he couldn't recycle we couldn't recycle you couldn't recycle they couldn't recycle	I couldn't be recycling you couldn't be recycling he couldn't be recycling we couldn't be recycling you couldn't be recycling they couldn't be recycling
Perfect	V-ing perfect
I couldn't have recycled you couldn't have recycled he couldn't have recycled we couldn't have recycled you couldn't have recycled they couldn't have recycled	I couldn't have been recycling you couldn't have been recycling he couldn't have been recycling we couldn't have been recycling you couldn't have been recycling they couldn't have been recycling

Interrogative form

Simple form	V-ing form
could I recycle? could you recycle? could he recycle? could we recycle? could you recycle? could they recycle?	could I be recycling? could you be recycling? could he be recycling? could we be recycling? could you be recycling? could they be recycling?
Perfect	V-ing perfect
could I have recycled? could you have recycled? could he have recycled? could we have recycled? could you have recycled? could they have recycled?	could I have been recycling? could you have been recycling? could he have been recycling? could we have been recycling? could you have been recycling? could they have been recycling?

Interro-negative form

Simple form	V-ing form
couldn't I recycle? couldn't you recycle? couldn't he recycle? couldn't we recycle? couldn't you recycle? couldn't they recycle?	couldn't I be recycling? couldn't you be recycling? couldn't he be recycling? couldn't we be recycling? couldn't you be recycling? couldn't they be recycling?
Perfect	V-ing perfect
couldn't I have recycled? couldn't you have recycled? couldn't he have recycled? couldn't we have recycled? couldn't you have recycled? couldn't they have recycled?	couldn't I have been recycling? couldn't you have been recycling? couldn't he have been recycling? couldn't we have been recycling? couldn't you have been recycling? couldn't they have been recycling?