English verb conjugation COULD ACHIEVE

Regular verb: achieve - achieved - achieved

Affirmation

Simple form

I could achieve
you could achieve
he could achieve
we could achieve
you could achieve
they could achieve

V-ing form

I could be achieving
you could be achieving
he could be achieving
we could be achieving
you could be achieving
they could be achieving

Perfect

I could have achieved
you could have achieved
he could have achieved
we could have achieved
you could have achieved
they could have achieved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I achieve?
could you achieve?
could he achieve?
could we achieve?
could you achieve?
could they achieve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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