male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation COULD CURB
Regular verb: curb - curbed - curbed
Affirmation
Simple form
I could curbyou could curb
she could curb
we could curb
you could curb
they could curb
V-ing form
I could be curbingyou could be curbing
she could be curbing
we could be curbing
you could be curbing
they could be curbing
Perfect
I could have curbedyou could have curbed
she could have curbed
we could have curbed
you could have curbed
they could have curbed
V-ing perfect
I could have been curbingyou could have been curbing
she could have been curbing
we could have been curbing
you could have been curbing
they could have been curbing
Negation
Simple form
I couldn't curbyou couldn't curb
she couldn't curb
we couldn't curb
you couldn't curb
they couldn't curb
V-ing form
I couldn't be curbingyou couldn't be curbing
she couldn't be curbing
we couldn't be curbing
you couldn't be curbing
they couldn't be curbing
Perfect
I couldn't have curbedyou couldn't have curbed
she couldn't have curbed
we couldn't have curbed
you couldn't have curbed
they couldn't have curbed
V-ing perfect
I couldn't have been curbingyou couldn't have been curbing
she couldn't have been curbing
we couldn't have been curbing
you couldn't have been curbing
they couldn't have been curbing
Interrogative form
Simple form
could I curb?could you curb?
could she curb?
could we curb?
could you curb?
could they curb?
V-ing form
could I be curbing?could you be curbing?
could she be curbing?
could we be curbing?
could you be curbing?
could they be curbing?
Perfect
could I have curbed?could you have curbed?
could she have curbed?
could we have curbed?
could you have curbed?
could they have curbed?
V-ing perfect
could I have been curbing?could you have been curbing?
could she have been curbing?
could we have been curbing?
could you have been curbing?
could they have been curbing?
Interro-negative form
Simple form
couldn't I curb?couldn't you curb?
couldn't she curb?
couldn't we curb?
couldn't you curb?
couldn't they curb?
V-ing form
couldn't I be curbing?couldn't you be curbing?
couldn't she be curbing?
couldn't we be curbing?
couldn't you be curbing?
couldn't they be curbing?
Perfect
couldn't I have curbed?couldn't you have curbed?
couldn't she have curbed?
couldn't we have curbed?
couldn't you have curbed?
couldn't they have curbed?
V-ing perfect
couldn't I have been curbing?couldn't you have been curbing?
couldn't she have been curbing?
couldn't we have been curbing?
couldn't you have been curbing?
couldn't they have been curbing?