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 could not recycle you could not recycle he could not recycle we could not recycle you could not recycle they could not recycle	I could not be recycling you could not be recycling he could not be recycling we could not be recycling you could not be recycling they could not be recycling
Perfect	V-ing perfect
I could not have recycled you could not have recycled he could not have recycled we could not have recycled you could not have recycled they could not have recycled	I could not have been recycling you could not have been recycling he could not have been recycling we could not have been recycling you could not have been recycling they could not 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
could I not recycle? could you not recycle? could he not recycle? could we not recycle? could you not recycle? could they not recycle?	could I not be recycling? could you not be recycling? could he not be recycling? could we not be recycling? could you not be recycling? could they not be recycling?
Perfect	V-ing perfect
could I not have recycled? could you not have recycled? could he not have recycled? could we not have recycled? could you not have recycled? could they not have recycled?	could I not have been recycling? could you not have been recycling? could he not have been recycling? could we not have been recycling? could you not have been recycling? could they not have been recycling?