English verb conjugation
CAN OBSOLESCE

Regular verb: obsolesce - obsolesced - obsolesced

Affirmation

Simple form	V-ing form
I can obsolesce you can obsolesce he can obsolesce we can obsolesce you can obsolesce they can obsolesce	I can be obsolescing you can be obsolescing he can be obsolescing we can be obsolescing you can be obsolescing they can be obsolescing
Perfect	V-ing perfect
I can have obsolesced you can have obsolesced he can have obsolesced we can have obsolesced you can have obsolesced they can have obsolesced	I can have been obsolescing you can have been obsolescing he can have been obsolescing we can have been obsolescing you can have been obsolescing they can have been obsolescing

Negation

Simple form	V-ing form
I cannot obsolesce you cannot obsolesce he cannot obsolesce we cannot obsolesce you cannot obsolesce they cannot obsolesce	I cannot be obsolescing you cannot be obsolescing he cannot be obsolescing we cannot be obsolescing you cannot be obsolescing they cannot be obsolescing
Perfect	V-ing perfect
I cannot have obsolesced you cannot have obsolesced he cannot have obsolesced we cannot have obsolesced you cannot have obsolesced they cannot have obsolesced	I cannot have been obsolescing you cannot have been obsolescing he cannot have been obsolescing we cannot have been obsolescing you cannot have been obsolescing they cannot have been obsolescing

Interrogative form

Simple form	V-ing form
can I obsolesce? can you obsolesce? can he obsolesce? can we obsolesce? can you obsolesce? can they obsolesce?	can I be obsolescing? can you be obsolescing? can he be obsolescing? can we be obsolescing? can you be obsolescing? can they be obsolescing?
Perfect	V-ing perfect
can I have obsolesced? can you have obsolesced? can he have obsolesced? can we have obsolesced? can you have obsolesced? can they have obsolesced?	can I have been obsolescing? can you have been obsolescing? can he have been obsolescing? can we have been obsolescing? can you have been obsolescing? can they have been obsolescing?

Interro-negative form

Simple form	V-ing form
can I not obsolesce? can you not obsolesce? can he not obsolesce? can we not obsolesce? can you not obsolesce? can they not obsolesce?	can I not be obsolescing? can you not be obsolescing? can he not be obsolescing? can we not be obsolescing? can you not be obsolescing? can they not be obsolescing?
Perfect	V-ing perfect
can I not have obsolesced? can you not have obsolesced? can he not have obsolesced? can we not have obsolesced? can you not have obsolesced? can they not have obsolesced?	can I not have been obsolescing? can you not have been obsolescing? can he not have been obsolescing? can we not have been obsolescing? can you not have been obsolescing? can they not have been obsolescing?