English verb conjugation
COULD LEACH

Regular verb: leach - leached - leached

Affirmation

Simple form	V-ing form
I could leach you could leach he could leach we could leach you could leach they could leach	I could be leaching you could be leaching he could be leaching we could be leaching you could be leaching they could be leaching
Perfect	V-ing perfect
I could have leached you could have leached he could have leached we could have leached you could have leached they could have leached	I could have been leaching you could have been leaching he could have been leaching we could have been leaching you could have been leaching they could have been leaching

Negation

Simple form	V-ing form
I couldn't leach you couldn't leach he couldn't leach we couldn't leach you couldn't leach they couldn't leach	I couldn't be leaching you couldn't be leaching he couldn't be leaching we couldn't be leaching you couldn't be leaching they couldn't be leaching
Perfect	V-ing perfect
I couldn't have leached you couldn't have leached he couldn't have leached we couldn't have leached you couldn't have leached they couldn't have leached	I couldn't have been leaching you couldn't have been leaching he couldn't have been leaching we couldn't have been leaching you couldn't have been leaching they couldn't have been leaching

Interrogative form

Simple form	V-ing form
could I leach? could you leach? could he leach? could we leach? could you leach? could they leach?	could I be leaching? could you be leaching? could he be leaching? could we be leaching? could you be leaching? could they be leaching?
Perfect	V-ing perfect
could I have leached? could you have leached? could he have leached? could we have leached? could you have leached? could they have leached?	could I have been leaching? could you have been leaching? could he have been leaching? could we have been leaching? could you have been leaching? could they have been leaching?

Interro-negative form

Simple form	V-ing form
couldn't I leach? couldn't you leach? couldn't he leach? couldn't we leach? couldn't you leach? couldn't they leach?	couldn't I be leaching? couldn't you be leaching? couldn't he be leaching? couldn't we be leaching? couldn't you be leaching? couldn't they be leaching?
Perfect	V-ing perfect
couldn't I have leached? couldn't you have leached? couldn't he have leached? couldn't we have leached? couldn't you have leached? couldn't they have leached?	couldn't I have been leaching? couldn't you have been leaching? couldn't he have been leaching? couldn't we have been leaching? couldn't you have been leaching? couldn't they have been leaching?