English verb conjugation
COULD DECRYPT

Regular verb: decrypt - decrypted - decrypted

Affirmation

Simple form	V-ing form
I could decrypt you could decrypt he could decrypt we could decrypt you could decrypt they could decrypt	I could be decrypting you could be decrypting he could be decrypting we could be decrypting you could be decrypting they could be decrypting
Perfect	V-ing perfect
I could have decrypted you could have decrypted he could have decrypted we could have decrypted you could have decrypted they could have decrypted	I could have been decrypting you could have been decrypting he could have been decrypting we could have been decrypting you could have been decrypting they could have been decrypting

Negation

Simple form	V-ing form
I couldn't decrypt you couldn't decrypt he couldn't decrypt we couldn't decrypt you couldn't decrypt they couldn't decrypt	I couldn't be decrypting you couldn't be decrypting he couldn't be decrypting we couldn't be decrypting you couldn't be decrypting they couldn't be decrypting
Perfect	V-ing perfect
I couldn't have decrypted you couldn't have decrypted he couldn't have decrypted we couldn't have decrypted you couldn't have decrypted they couldn't have decrypted	I couldn't have been decrypting you couldn't have been decrypting he couldn't have been decrypting we couldn't have been decrypting you couldn't have been decrypting they couldn't have been decrypting

Interrogative form

Simple form	V-ing form
could I decrypt? could you decrypt? could he decrypt? could we decrypt? could you decrypt? could they decrypt?	could I be decrypting? could you be decrypting? could he be decrypting? could we be decrypting? could you be decrypting? could they be decrypting?
Perfect	V-ing perfect
could I have decrypted? could you have decrypted? could he have decrypted? could we have decrypted? could you have decrypted? could they have decrypted?	could I have been decrypting? could you have been decrypting? could he have been decrypting? could we have been decrypting? could you have been decrypting? could they have been decrypting?

Interro-negative form

Simple form	V-ing form
couldn't I decrypt? couldn't you decrypt? couldn't he decrypt? couldn't we decrypt? couldn't you decrypt? couldn't they decrypt?	couldn't I be decrypting? couldn't you be decrypting? couldn't he be decrypting? couldn't we be decrypting? couldn't you be decrypting? couldn't they be decrypting?
Perfect	V-ing perfect
couldn't I have decrypted? couldn't you have decrypted? couldn't he have decrypted? couldn't we have decrypted? couldn't you have decrypted? couldn't they have decrypted?	couldn't I have been decrypting? couldn't you have been decrypting? couldn't he have been decrypting? couldn't we have been decrypting? couldn't you have been decrypting? couldn't they have been decrypting?