could bestead
Regular verb: bestead - besteaded- besteaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bestead
you could bestead
he could bestead
we could bestead
you could bestead
they could bestead 	I could be besteading
you could be besteading
he could be besteading
we could be besteading
you could be besteading
they could be besteading	I could have besteaded
you could have besteaded
he could have besteaded
we could have besteaded
you could have besteaded
they could have besteaded	I could have been besteading
you could have been besteading
he could have been besteading
we could have been besteading
you could have been besteading
they could have been besteading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't bestead
you couldn't bestead
he couldn't bestead
we couldn't bestead
you couldn't bestead
they couldn't bestead 	I couldn't be besteading
you couldn't be besteading
he couldn't be besteading
we couldn't be besteading
you couldn't be besteading
they couldn't be besteading	I couldn't have besteaded
you couldn't have besteaded
he couldn't have besteaded
we couldn't have besteaded
you couldn't have besteaded
they couldn't have besteaded	I couldn't have been besteading
you couldn't have been besteading
he couldn't have been besteading
we couldn't have been besteading
you couldn't have been besteading
they couldn't have been besteading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I bestead?
could you bestead?
could he bestead?
could we bestead?
could you bestead?
could they bestead? 	could I be besteading?
could you be besteading?
could he be besteading?
could we be besteading?
could you be besteading?
could they be besteading? 	could I have besteaded?
could you have besteaded?
could he have besteaded?
could we have besteaded?
could you have besteaded?
could they have besteaded? 	could I have been besteading?
could you have been besteading?
could he have been besteading?
could we have been besteading?
could you have been besteading?
could they have been besteading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I bestead?
couldn't you bestead?
couldn't he bestead?
couldn't we bestead?
couldn't you bestead?
couldn't they bestead? 	couldn't I be besteading?
couldn't you be besteading?
couldn't he be besteading?
couldn't we be besteading?
couldn't you be besteading?
couldn't they be besteading? 	couldn't I have besteaded?
couldn't you have besteaded?
couldn't he have besteaded?
couldn't we have besteaded?
couldn't you have besteaded?
couldn't they have besteaded? 	couldn't I have been besteading?
couldn't you have been besteading?
couldn't he have been besteading?
couldn't we have been besteading?
couldn't you have been besteading?
couldn't they have been besteading?