English verb conjugation COULD SPEARHEAD

Regular verb: spearhead - spearheaded - spearheaded

Affirmation

Simple form

I could spearhead
you could spearhead
he could spearhead
we could spearhead
you could spearhead
they could spearhead

V-ing form

I could be spearheading
you could be spearheading
he could be spearheading
we could be spearheading
you could be spearheading
they could be spearheading

Perfect

I could have spearheaded
you could have spearheaded
he could have spearheaded
we could have spearheaded
you could have spearheaded
they could have spearheaded

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I spearhead?
could you spearhead?
could he spearhead?
could we spearhead?
could you spearhead?
could they spearhead?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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