English verb conjugation COULD SHEATHE

Regular verb: sheathe - sheathed - sheathed

Affirmation

Simple form

I could sheathe
you could sheathe
he could sheathe
we could sheathe
you could sheathe
they could sheathe

V-ing form

I could be sheathing
you could be sheathing
he could be sheathing
we could be sheathing
you could be sheathing
they could be sheathing

Perfect

I could have sheathed
you could have sheathed
he could have sheathed
we could have sheathed
you could have sheathed
they could have sheathed

V-ing perfect

I could have been sheathing
you could have been sheathing
he could have been sheathing
we could have been sheathing
you could have been sheathing
they could have been sheathing

Negation

Simple form

I couldn't sheathe
you couldn't sheathe
he couldn't sheathe
we couldn't sheathe
you couldn't sheathe
they couldn't sheathe

V-ing form

I couldn't be sheathing
you couldn't be sheathing
he couldn't be sheathing
we couldn't be sheathing
you couldn't be sheathing
they couldn't be sheathing

Perfect

I couldn't have sheathed
you couldn't have sheathed
he couldn't have sheathed
we couldn't have sheathed
you couldn't have sheathed
they couldn't have sheathed

V-ing perfect

I couldn't have been sheathing
you couldn't have been sheathing
he couldn't have been sheathing
we couldn't have been sheathing
you couldn't have been sheathing
they couldn't have been sheathing

Interrogative form

Simple form

could I sheathe?
could you sheathe?
could he sheathe?
could we sheathe?
could you sheathe?
could they sheathe?

V-ing form

could I be sheathing?
could you be sheathing?
could he be sheathing?
could we be sheathing?
could you be sheathing?
could they be sheathing?

Perfect

could I have sheathed?
could you have sheathed?
could he have sheathed?
could we have sheathed?
could you have sheathed?
could they have sheathed?

V-ing perfect

could I have been sheathing?
could you have been sheathing?
could he have been sheathing?
could we have been sheathing?
could you have been sheathing?
could they have been sheathing?

Interro-negative form

Simple form

couldn't I sheathe?
couldn't you sheathe?
couldn't he sheathe?
couldn't we sheathe?
couldn't you sheathe?
couldn't they sheathe?

V-ing form

couldn't I be sheathing?
couldn't you be sheathing?
couldn't he be sheathing?
couldn't we be sheathing?
couldn't you be sheathing?
couldn't they be sheathing?

Perfect

couldn't I have sheathed?
couldn't you have sheathed?
couldn't he have sheathed?
couldn't we have sheathed?
couldn't you have sheathed?
couldn't they have sheathed?

V-ing perfect

couldn't I have been sheathing?
couldn't you have been sheathing?
couldn't he have been sheathing?
couldn't we have been sheathing?
couldn't you have been sheathing?
couldn't they have been sheathing?

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