Warning, this verb may not exist. Conjugation is given as example.
Indicative
Present
I lack lack you lack lack he lack lacks we lack lack you lack lack they lack lack
Present continuous
I am lack lacking you are lack lacking he is lack lacking we are lack lacking you are lack lacking they are lack lacking
Preterite
I lack lacked you lack lacked he lack lacked we lack lacked you lack lacked they lack lacked
Preterite continuous
I was lack lacking you were lack lacking he was lack lacking we were lack lacking you were lack lacking they were lack lacking
Present perfect
I have lack lacked you have lack lacked he has lack lacked we have lack lacked you have lack lacked they have lack lacked
Present perfect continuous
I have been lack lacking you have been lack lacking he has been lack lacking we have been lack lacking you have been lack lacking they have been lack lacking
Pluperfect
I had lack lacked you had lack lacked he had lack lacked we had lack lacked you had lack lacked they had lack lacked
Pluperfect continuous
I had been lack lacking you had been lack lacking he had been lack lacking we had been lack lacking you had been lack lacking they had been lack lacking
Future
I will lack lack you will lack lack he will lack lack we will lack lack you will lack lack they will lack lack
Future continuous
I will be lack lacking you will be lack lacking he will be lack lacking we will be lack lacking you will be lack lacking they will be lack lacking
Future perfect
I will have lack lacked you will have lack lacked he will have lack lacked we will have lack lacked you will have lack lacked they will have lack lacked
Future perfect continuous
I will have been lack lacking you will have been lack lacking he will have been lack lacking we will have been lack lacking you will have been lack lacking they will have been lack lacking
Conditional
Present
I would lack lack you would lack lack he would lack lack we would lack lack you would lack lack they would lack lack
Present continuous
I would be lack lacking you would be lack lacking he would be lack lacking we would be lack lacking you would be lack lacking they would be lack lacking
Past
I would have lack lacked you would have lack lacked he would have lack lacked we would have lack lacked you would have lack lacked they would have lack lacked
Past continuous
I would have been lack lacking you would have been lack lacking he would have been lack lacking we would have been lack lacking you would have been lack lacking they would have been lack lacking