English verb conjugation COULD GROUP

Regular verb: group - grouped - grouped

Affirmation

Simple form

I could group
you could group
he could group
we could group
you could group
they could group

V-ing form

I could be grouping
you could be grouping
he could be grouping
we could be grouping
you could be grouping
they could be grouping

Perfect

I could have grouped
you could have grouped
he could have grouped
we could have grouped
you could have grouped
they could have grouped

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I group?
could you group?
could he group?
could we group?
could you group?
could they group?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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