English verb conjugation COULD TREAD

Irregular verb: tread - trod - trod, trodden


Affirmation

Simple form

I could tread
you could tread
he could tread
we could tread
you could tread
they could tread

V-ing form

I could be treading
you could be treading
he could be treading
we could be treading
you could be treading
they could be treading

Perfect

I could have trod, trodden
you could have trod, trodden
he could have trod, trodden
we could have trod, trodden
you could have trod, trodden
they could have trod, trodden

V-ing perfect

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

Negation

Simple form

I could not tread
you could not tread
he could not tread
we could not tread
you could not tread
they could not tread

V-ing form

I could not be treading
you could not be treading
he could not be treading
we could not be treading
you could not be treading
they could not be treading

Perfect

I could not have trod, trodden
you could not have trod, trodden
he could not have trod, trodden
we could not have trod, trodden
you could not have trod, trodden
they could not have trod, trodden

V-ing perfect

I could not have been treading
you could not have been treading
he could not have been treading
we could not have been treading
you could not have been treading
they could not have been treading

Interrogative form

Simple form

could I tread?
could you tread?
could he tread?
could we tread?
could you tread?
could they tread?

V-ing form

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

Perfect

could I have trod, trodden?
could you have trod, trodden?
could he have trod, trodden?
could we have trod, trodden?
could you have trod, trodden?
could they have trod, trodden?

V-ing perfect

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

Interro-negative form

Simple form

could I not tread?
could you not tread?
could he not tread?
could we not tread?
could you not tread?
could they not tread?

V-ing form

could I not be treading?
could you not be treading?
could he not be treading?
could we not be treading?
could you not be treading?
could they not be treading?

Perfect

could I not have trod, trodden?
could you not have trod, trodden?
could he not have trod, trodden?
could we not have trod, trodden?
could you not have trod, trodden?
could they not have trod, trodden?

V-ing perfect

could I not have been treading?
could you not have been treading?
could he not have been treading?
could we not have been treading?
could you not have been treading?
could they not have been treading?