could leach
Regular verb: leach - leached- leached

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could leach
you could leach
she could leach
we could leach
you could leach
they could leach 	I could be leaching
you could be leaching
she could be leaching
we could be leaching
you could be leaching
they could be leaching	I could have leached
you could have leached
she 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
she 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 could not leach
you could not leach
she could not leach
we could not leach
you could not leach
they could not leach 	I could not be leaching
you could not be leaching
she could not be leaching
we could not be leaching
you could not be leaching
they could not be leaching	I could not have leached
you could not have leached
she could not have leached
we could not have leached
you could not have leached
they could not have leached	I could not have been leaching
you could not have been leaching
she could not have been leaching
we could not have been leaching
you could not have been leaching
they could not have been leaching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I leach?
could you leach?
could she leach?
could we leach?
could you leach?
could they leach? 	could I be leaching?
could you be leaching?
could she be leaching?
could we be leaching?
could you be leaching?
could they be leaching? 	could I have leached?
could you have leached?
could she 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 she 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 	
could I not leach?
could you not leach?
could she not leach?
could we not leach?
could you not leach?
could they not leach? 	could I not be leaching?
could you not be leaching?
could she not be leaching?
could we not be leaching?
could you not be leaching?
could they not be leaching? 	could I not have leached?
could you not have leached?
could she not have leached?
could we not have leached?
could you not have leached?
could they not have leached? 	could I not have been leaching?
could you not have been leaching?
could she not have been leaching?
could we not have been leaching?
could you not have been leaching?
could they not have been leaching?