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 couldn't decrepitate you couldn't decrepitate he couldn't decrepitate we couldn't decrepitate you couldn't decrepitate they couldn't decrepitate	I couldn't be decrepitating you couldn't be decrepitating he couldn't be decrepitating we couldn't be decrepitating you couldn't be decrepitating they couldn't be decrepitating
Perfect	V-ing perfect
I couldn't have decrepitated you couldn't have decrepitated he couldn't have decrepitated we couldn't have decrepitated you couldn't have decrepitated they couldn't have decrepitated	I couldn't have been decrepitating you couldn't have been decrepitating he couldn't have been decrepitating we couldn't have been decrepitating you couldn't have been decrepitating they couldn't 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
couldn't I decrepitate? couldn't you decrepitate? couldn't he decrepitate? couldn't we decrepitate? couldn't you decrepitate? couldn't they decrepitate?	couldn't I be decrepitating? couldn't you be decrepitating? couldn't he be decrepitating? couldn't we be decrepitating? couldn't you be decrepitating? couldn't they be decrepitating?
Perfect	V-ing perfect
couldn't I have decrepitated? couldn't you have decrepitated? couldn't he have decrepitated? couldn't we have decrepitated? couldn't you have decrepitated? couldn't they have decrepitated?	couldn't I have been decrepitating? couldn't you have been decrepitating? couldn't he have been decrepitating? couldn't we have been decrepitating? couldn't you have been decrepitating? couldn't they have been decrepitating?