English verb conjugation
CAN UNDERPRODUCE

Regular verb: underproduce - underproduced - underproduced

Affirmation

Simple form	V-ing form
I can underproduce you can underproduce he can underproduce we can underproduce you can underproduce they can underproduce	I can be underproducing you can be underproducing he can be underproducing we can be underproducing you can be underproducing they can be underproducing
Perfect	V-ing perfect
I can have underproduced you can have underproduced he can have underproduced we can have underproduced you can have underproduced they can have underproduced	I can have been underproducing you can have been underproducing he can have been underproducing we can have been underproducing you can have been underproducing they can have been underproducing

Negation

Simple form	V-ing form
I cannot underproduce you cannot underproduce he cannot underproduce we cannot underproduce you cannot underproduce they cannot underproduce	I cannot be underproducing you cannot be underproducing he cannot be underproducing we cannot be underproducing you cannot be underproducing they cannot be underproducing
Perfect	V-ing perfect
I cannot have underproduced you cannot have underproduced he cannot have underproduced we cannot have underproduced you cannot have underproduced they cannot have underproduced	I cannot have been underproducing you cannot have been underproducing he cannot have been underproducing we cannot have been underproducing you cannot have been underproducing they cannot have been underproducing

Interrogative form

Simple form	V-ing form
can I underproduce? can you underproduce? can he underproduce? can we underproduce? can you underproduce? can they underproduce?	can I be underproducing? can you be underproducing? can he be underproducing? can we be underproducing? can you be underproducing? can they be underproducing?
Perfect	V-ing perfect
can I have underproduced? can you have underproduced? can he have underproduced? can we have underproduced? can you have underproduced? can they have underproduced?	can I have been underproducing? can you have been underproducing? can he have been underproducing? can we have been underproducing? can you have been underproducing? can they have been underproducing?

Interro-negative form

Simple form	V-ing form
can I not underproduce? can you not underproduce? can he not underproduce? can we not underproduce? can you not underproduce? can they not underproduce?	can I not be underproducing? can you not be underproducing? can he not be underproducing? can we not be underproducing? can you not be underproducing? can they not be underproducing?
Perfect	V-ing perfect
can I not have underproduced? can you not have underproduced? can he not have underproduced? can we not have underproduced? can you not have underproduced? can they not have underproduced?	can I not have been underproducing? can you not have been underproducing? can he not have been underproducing? can we not have been underproducing? can you not have been underproducing? can they not have been underproducing?