could leach
Regular verb: leach - leached- leached

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?