Present
I curb
you curb
he curbs
we curb
you curb
they curb

Perfect
I have curbed
you have curbed
he has curbed
we have curbed
you have curbed
they have curbed

Past
I curbed
you curbed
he curbed
we curbed
you curbed
they curbed

Pluperfect
I had curbed
you had curbed
he had curbed
we had curbed
you had curbed
they had curbed

Future
I will curb
you will curb
he will curb
we will curb
you will curb
they will curb

Future perfect
I will have curbed
you will have curbed
he will have curbed
we will have curbed
you will have curbed
they will have curbed

Present
I curb
you curb
he curb
we curb
you curb
they curb

Present
I have curbed
you have curbed
he have curbed
we have curbed
you have curbed
they have curbed

Imperfect
I curbed
you curbed
he curbed
we curbed
you curbed
they curbed

Pluperfect
I had curbed
you had curbed
he had curbed
we had curbed
you had curbed
they had curbed

Present
I would curb
you would curb
he would curb
we would curb
you would curb
they would curb

Perfect
I would have curbed
you would have curbed
he would have curbed
we would have curbed
you would have curbed
they would have curbed

you curb
we Let's curb
you curb

Present
I am curbing
you are curbing
he is curbing
we are curbing
you are curbing
they are curbing

Perfect
I have been curbing
you have been curbing
he has been curbing
we have been curbing
you have been curbing
they have been curbing

Past
I was curbing
you were curbing
he was curbing
we were curbing
you were curbing
they were curbing

Pluperfect
I had been curbing
you had been curbing
he had been curbing
we had been curbing
you had been curbing
they had been curbing

Future
I will be curbing
you will be curbing
he will be curbing
we will be curbing
you will be curbing
they will be curbing

Future perfect
I will have been curbing
you will have been curbing
he will have been curbing
we will have been curbing
you will have been curbing
they will have been curbing

Present
I would be curbing
you would be curbing
he would be curbing
we would be curbing
you would be curbing
they would be curbing

Perfect
I would have been curbing
you would have been curbing
he would have been curbing
we would have been curbing
you would have been curbing
they would have been curbing