English verb conjugation
CAN SECOND-GUESS

Regular verb: second-guess - second-guessed - second-guessed

Affirmation

Simple form	V-ing form
I can second-guess you can second-guess she can second-guess we can second-guess you can second-guess they can second-guess	I can be second-guessing you can be second-guessing she can be second-guessing we can be second-guessing you can be second-guessing they can be second-guessing
Perfect	V-ing perfect
I can have second-guessed you can have second-guessed she can have second-guessed we can have second-guessed you can have second-guessed they can have second-guessed	I can have been second-guessing you can have been second-guessing she can have been second-guessing we can have been second-guessing you can have been second-guessing they can have been second-guessing

Negation

Simple form	V-ing form
I cannot second-guess you cannot second-guess she cannot second-guess we cannot second-guess you cannot second-guess they cannot second-guess	I cannot be second-guessing you cannot be second-guessing she cannot be second-guessing we cannot be second-guessing you cannot be second-guessing they cannot be second-guessing
Perfect	V-ing perfect
I cannot have second-guessed you cannot have second-guessed she cannot have second-guessed we cannot have second-guessed you cannot have second-guessed they cannot have second-guessed	I cannot have been second-guessing you cannot have been second-guessing she cannot have been second-guessing we cannot have been second-guessing you cannot have been second-guessing they cannot have been second-guessing

Interrogative form

Simple form	V-ing form
can I second-guess? can you second-guess? can she second-guess? can we second-guess? can you second-guess? can they second-guess?	can I be second-guessing? can you be second-guessing? can she be second-guessing? can we be second-guessing? can you be second-guessing? can they be second-guessing?
Perfect	V-ing perfect
can I have second-guessed? can you have second-guessed? can she have second-guessed? can we have second-guessed? can you have second-guessed? can they have second-guessed?	can I have been second-guessing? can you have been second-guessing? can she have been second-guessing? can we have been second-guessing? can you have been second-guessing? can they have been second-guessing?

Interro-negative form

Simple form	V-ing form
can I not second-guess? can you not second-guess? can she not second-guess? can we not second-guess? can you not second-guess? can they not second-guess?	can I not be second-guessing? can you not be second-guessing? can she not be second-guessing? can we not be second-guessing? can you not be second-guessing? can they not be second-guessing?
Perfect	V-ing perfect
can I not have second-guessed? can you not have second-guessed? can she not have second-guessed? can we not have second-guessed? can you not have second-guessed? can they not have second-guessed?	can I not have been second-guessing? can you not have been second-guessing? can she not have been second-guessing? can we not have been second-guessing? can you not have been second-guessing? can they not have been second-guessing?