male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation COULD GUESS
Regular verb: guess - guessed - guessed
Affirmation
Simple form
I could guessyou could guess
she could guess
we could guess
you could guess
they could guess
V-ing form
I could be guessingyou could be guessing
she could be guessing
we could be guessing
you could be guessing
they could be guessing
Perfect
I could have guessedyou could have guessed
she could have guessed
we could have guessed
you could have guessed
they could have guessed
V-ing perfect
I could have been guessingyou could have been guessing
she could have been guessing
we could have been guessing
you could have been guessing
they could have been guessing
Negation
Simple form
I couldn't guessyou couldn't guess
she couldn't guess
we couldn't guess
you couldn't guess
they couldn't guess
V-ing form
I couldn't be guessingyou couldn't be guessing
she couldn't be guessing
we couldn't be guessing
you couldn't be guessing
they couldn't be guessing
Perfect
I couldn't have guessedyou couldn't have guessed
she couldn't have guessed
we couldn't have guessed
you couldn't have guessed
they couldn't have guessed
V-ing perfect
I couldn't have been guessingyou couldn't have been guessing
she couldn't have been guessing
we couldn't have been guessing
you couldn't have been guessing
they couldn't have been guessing
Interrogative form
Simple form
could I guess?could you guess?
could she guess?
could we guess?
could you guess?
could they guess?
V-ing form
could I be guessing?could you be guessing?
could she be guessing?
could we be guessing?
could you be guessing?
could they be guessing?
Perfect
could I have guessed?could you have guessed?
could she have guessed?
could we have guessed?
could you have guessed?
could they have guessed?
V-ing perfect
could I have been guessing?could you have been guessing?
could she have been guessing?
could we have been guessing?
could you have been guessing?
could they have been guessing?
Interro-negative form
Simple form
couldn't I guess?couldn't you guess?
couldn't she guess?
couldn't we guess?
couldn't you guess?
couldn't they guess?
V-ing form
couldn't I be guessing?couldn't you be guessing?
couldn't she be guessing?
couldn't we be guessing?
couldn't you be guessing?
couldn't they be guessing?
Perfect
couldn't I have guessed?couldn't you have guessed?
couldn't she have guessed?
couldn't we have guessed?
couldn't you have guessed?
couldn't they have guessed?
V-ing perfect
couldn't I have been guessing?couldn't you have been guessing?
couldn't she have been guessing?
couldn't we have been guessing?
couldn't you have been guessing?
couldn't they have been guessing?