English verb conjugation COULD BOAST

Regular verb: boast - boasted - boasted

Affirmation

Simple form

I could boast
you could boast
he could boast
we could boast
you could boast
they could boast

V-ing form

I could be boasting
you could be boasting
he could be boasting
we could be boasting
you could be boasting
they could be boasting

Perfect

I could have boasted
you could have boasted
he could have boasted
we could have boasted
you could have boasted
they could have boasted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I boast?
could you boast?
could he boast?
could we boast?
could you boast?
could they boast?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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