English verb conjugation
CAN KVETCH

Regular verb: kvetch - kvetched - kvetched

Affirmation

Simple form	V-ing form
I can kvetch you can kvetch he can kvetch we can kvetch you can kvetch they can kvetch	I can be kvetching you can be kvetching he can be kvetching we can be kvetching you can be kvetching they can be kvetching
Perfect	V-ing perfect
I can have kvetched you can have kvetched he can have kvetched we can have kvetched you can have kvetched they can have kvetched	I can have been kvetching you can have been kvetching he can have been kvetching we can have been kvetching you can have been kvetching they can have been kvetching

Negation

Simple form	V-ing form
I cannot kvetch you cannot kvetch he cannot kvetch we cannot kvetch you cannot kvetch they cannot kvetch	I cannot be kvetching you cannot be kvetching he cannot be kvetching we cannot be kvetching you cannot be kvetching they cannot be kvetching
Perfect	V-ing perfect
I cannot have kvetched you cannot have kvetched he cannot have kvetched we cannot have kvetched you cannot have kvetched they cannot have kvetched	I cannot have been kvetching you cannot have been kvetching he cannot have been kvetching we cannot have been kvetching you cannot have been kvetching they cannot have been kvetching

Interrogative form

Simple form	V-ing form
can I kvetch? can you kvetch? can he kvetch? can we kvetch? can you kvetch? can they kvetch?	can I be kvetching? can you be kvetching? can he be kvetching? can we be kvetching? can you be kvetching? can they be kvetching?
Perfect	V-ing perfect
can I have kvetched? can you have kvetched? can he have kvetched? can we have kvetched? can you have kvetched? can they have kvetched?	can I have been kvetching? can you have been kvetching? can he have been kvetching? can we have been kvetching? can you have been kvetching? can they have been kvetching?

Interro-negative form

Simple form	V-ing form
can I not kvetch? can you not kvetch? can he not kvetch? can we not kvetch? can you not kvetch? can they not kvetch?	can I not be kvetching? can you not be kvetching? can he not be kvetching? can we not be kvetching? can you not be kvetching? can they not be kvetching?
Perfect	V-ing perfect
can I not have kvetched? can you not have kvetched? can he not have kvetched? can we not have kvetched? can you not have kvetched? can they not have kvetched?	can I not have been kvetching? can you not have been kvetching? can he not have been kvetching? can we not have been kvetching? can you not have been kvetching? can they not have been kvetching?