English verb conjugation COULD CLASH

Regular verb: clash - clashed - clashed

Affirmation

Simple form

I could clash
you could clash
he could clash
we could clash
you could clash
they could clash

V-ing form

I could be clashing
you could be clashing
he could be clashing
we could be clashing
you could be clashing
they could be clashing

Perfect

I could have clashed
you could have clashed
he could have clashed
we could have clashed
you could have clashed
they could have clashed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I clash?
could you clash?
could he clash?
could we clash?
could you clash?
could they clash?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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