English verb conjugation COULD STIPPLE

Regular verb: stipple - stippled - stippled

Affirmation

Simple form

I could stipple
you could stipple
he could stipple
we could stipple
you could stipple
they could stipple

V-ing form

I could be stippling
you could be stippling
he could be stippling
we could be stippling
you could be stippling
they could be stippling

Perfect

I could have stippled
you could have stippled
he could have stippled
we could have stippled
you could have stippled
they could have stippled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I stipple?
could you stipple?
could he stipple?
could we stipple?
could you stipple?
could they stipple?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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