English verb conjugation
CAN UNDERPRODUCE

Regular verb: underproduce - underproduced - underproduced

Affirmation

Simple form	V-ing form
I can underproduce you can underproduce she can underproduce we can underproduce you can underproduce they can underproduce	I can be underproducing you can be underproducing she 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 she 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 she 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 can't underproduce you can't underproduce she can't underproduce we can't underproduce you can't underproduce they can't underproduce	I can't be underproducing you can't be underproducing she can't be underproducing we can't be underproducing you can't be underproducing they can't be underproducing
Perfect	V-ing perfect
I can't have underproduced you can't have underproduced she can't have underproduced we can't have underproduced you can't have underproduced they can't have underproduced	I can't have been underproducing you can't have been underproducing she can't have been underproducing we can't have been underproducing you can't have been underproducing they can't have been underproducing

Interrogative form

Simple form	V-ing form
can I underproduce? can you underproduce? can she underproduce? can we underproduce? can you underproduce? can they underproduce?	can I be underproducing? can you be underproducing? can she 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 she 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 she 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't I underproduce? can't you underproduce? can't she underproduce? can't we underproduce? can't you underproduce? can't they underproduce?	can't I be underproducing? can't you be underproducing? can't she be underproducing? can't we be underproducing? can't you be underproducing? can't they be underproducing?
Perfect	V-ing perfect
can't I have underproduced? can't you have underproduced? can't she have underproduced? can't we have underproduced? can't you have underproduced? can't they have underproduced?	can't I have been underproducing? can't you have been underproducing? can't she have been underproducing? can't we have been underproducing? can't you have been underproducing? can't they have been underproducing?