English verb conjugation COULD STAIN STH

Regular verb: stain sth - stain sthed - stain sthed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form

I could stain sth
you could stain sth
he could stain sth
we could stain sth
you could stain sth
they could stain sth

V-ing form

I could be stain sthing
you could be stain sthing
he could be stain sthing
we could be stain sthing
you could be stain sthing
they could be stain sthing

Perfect

I could have stain sthed
you could have stain sthed
he could have stain sthed
we could have stain sthed
you could have stain sthed
they could have stain sthed

V-ing perfect

I could have been stain sthing
you could have been stain sthing
he could have been stain sthing
we could have been stain sthing
you could have been stain sthing
they could have been stain sthing

Negation

Simple form

I couldn't stain sth
you couldn't stain sth
he couldn't stain sth
we couldn't stain sth
you couldn't stain sth
they couldn't stain sth

V-ing form

I couldn't be stain sthing
you couldn't be stain sthing
he couldn't be stain sthing
we couldn't be stain sthing
you couldn't be stain sthing
they couldn't be stain sthing

Perfect

I couldn't have stain sthed
you couldn't have stain sthed
he couldn't have stain sthed
we couldn't have stain sthed
you couldn't have stain sthed
they couldn't have stain sthed

V-ing perfect

I couldn't have been stain sthing
you couldn't have been stain sthing
he couldn't have been stain sthing
we couldn't have been stain sthing
you couldn't have been stain sthing
they couldn't have been stain sthing

Interrogative form

Simple form

could I stain sth?
could you stain sth?
could he stain sth?
could we stain sth?
could you stain sth?
could they stain sth?

V-ing form

could I be stain sthing?
could you be stain sthing?
could he be stain sthing?
could we be stain sthing?
could you be stain sthing?
could they be stain sthing?

Perfect

could I have stain sthed?
could you have stain sthed?
could he have stain sthed?
could we have stain sthed?
could you have stain sthed?
could they have stain sthed?

V-ing perfect

could I have been stain sthing?
could you have been stain sthing?
could he have been stain sthing?
could we have been stain sthing?
could you have been stain sthing?
could they have been stain sthing?

Interro-negative form

Simple form

couldn't I stain sth?
couldn't you stain sth?
couldn't he stain sth?
couldn't we stain sth?
couldn't you stain sth?
couldn't they stain sth?

V-ing form

couldn't I be stain sthing?
couldn't you be stain sthing?
couldn't he be stain sthing?
couldn't we be stain sthing?
couldn't you be stain sthing?
couldn't they be stain sthing?

Perfect

couldn't I have stain sthed?
couldn't you have stain sthed?
couldn't he have stain sthed?
couldn't we have stain sthed?
couldn't you have stain sthed?
couldn't they have stain sthed?

V-ing perfect

couldn't I have been stain sthing?
couldn't you have been stain sthing?
couldn't he have been stain sthing?
couldn't we have been stain sthing?
couldn't you have been stain sthing?
couldn't they have been stain sthing?

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