English verb conjugation
CAN UNJAM

Regular verb: unjam - unjamed - unjamed

Affirmation

Simple form	V-ing form
I can unjam you can unjam he can unjam we can unjam you can unjam they can unjam	I can be unjaming you can be unjaming he can be unjaming we can be unjaming you can be unjaming they can be unjaming
Perfect	V-ing perfect
I can have unjamed you can have unjamed he can have unjamed we can have unjamed you can have unjamed they can have unjamed	I can have been unjaming you can have been unjaming he can have been unjaming we can have been unjaming you can have been unjaming they can have been unjaming

Negation

Simple form	V-ing form
I cannot unjam you cannot unjam he cannot unjam we cannot unjam you cannot unjam they cannot unjam	I cannot be unjaming you cannot be unjaming he cannot be unjaming we cannot be unjaming you cannot be unjaming they cannot be unjaming
Perfect	V-ing perfect
I cannot have unjamed you cannot have unjamed he cannot have unjamed we cannot have unjamed you cannot have unjamed they cannot have unjamed	I cannot have been unjaming you cannot have been unjaming he cannot have been unjaming we cannot have been unjaming you cannot have been unjaming they cannot have been unjaming

Interrogative form

Simple form	V-ing form
can I unjam? can you unjam? can he unjam? can we unjam? can you unjam? can they unjam?	can I be unjaming? can you be unjaming? can he be unjaming? can we be unjaming? can you be unjaming? can they be unjaming?
Perfect	V-ing perfect
can I have unjamed? can you have unjamed? can he have unjamed? can we have unjamed? can you have unjamed? can they have unjamed?	can I have been unjaming? can you have been unjaming? can he have been unjaming? can we have been unjaming? can you have been unjaming? can they have been unjaming?

Interro-negative form

Simple form	V-ing form
can I not unjam? can you not unjam? can he not unjam? can we not unjam? can you not unjam? can they not unjam?	can I not be unjaming? can you not be unjaming? can he not be unjaming? can we not be unjaming? can you not be unjaming? can they not be unjaming?
Perfect	V-ing perfect
can I not have unjamed? can you not have unjamed? can he not have unjamed? can we not have unjamed? can you not have unjamed? can they not have unjamed?	can I not have been unjaming? can you not have been unjaming? can he not have been unjaming? can we not have been unjaming? can you not have been unjaming? can they not have been unjaming?