English verb conjugation
COULD DECREPITATE

Regular verb: decrepitate - decrepitated - decrepitated

Affirmation

Simple form	V-ing form
I could decrepitate you could decrepitate he could decrepitate we could decrepitate you could decrepitate they could decrepitate	I could be decrepitating you could be decrepitating he could be decrepitating we could be decrepitating you could be decrepitating they could be decrepitating
Perfect	V-ing perfect
I could have decrepitated you could have decrepitated he could have decrepitated we could have decrepitated you could have decrepitated they could have decrepitated	I could have been decrepitating you could have been decrepitating he could have been decrepitating we could have been decrepitating you could have been decrepitating they could have been decrepitating

Negation

Simple form	V-ing form
I could not decrepitate you could not decrepitate he could not decrepitate we could not decrepitate you could not decrepitate they could not decrepitate	I could not be decrepitating you could not be decrepitating he could not be decrepitating we could not be decrepitating you could not be decrepitating they could not be decrepitating
Perfect	V-ing perfect
I could not have decrepitated you could not have decrepitated he could not have decrepitated we could not have decrepitated you could not have decrepitated they could not have decrepitated	I could not have been decrepitating you could not have been decrepitating he could not have been decrepitating we could not have been decrepitating you could not have been decrepitating they could not have been decrepitating

Interrogative form

Simple form	V-ing form
could I decrepitate? could you decrepitate? could he decrepitate? could we decrepitate? could you decrepitate? could they decrepitate?	could I be decrepitating? could you be decrepitating? could he be decrepitating? could we be decrepitating? could you be decrepitating? could they be decrepitating?
Perfect	V-ing perfect
could I have decrepitated? could you have decrepitated? could he have decrepitated? could we have decrepitated? could you have decrepitated? could they have decrepitated?	could I have been decrepitating? could you have been decrepitating? could he have been decrepitating? could we have been decrepitating? could you have been decrepitating? could they have been decrepitating?

Interro-negative form

Simple form	V-ing form
could I not decrepitate? could you not decrepitate? could he not decrepitate? could we not decrepitate? could you not decrepitate? could they not decrepitate?	could I not be decrepitating? could you not be decrepitating? could he not be decrepitating? could we not be decrepitating? could you not be decrepitating? could they not be decrepitating?
Perfect	V-ing perfect
could I not have decrepitated? could you not have decrepitated? could he not have decrepitated? could we not have decrepitated? could you not have decrepitated? could they not have decrepitated?	could I not have been decrepitating? could you not have been decrepitating? could he not have been decrepitating? could we not have been decrepitating? could you not have been decrepitating? could they not have been decrepitating?