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 can't second-guess you can't second-guess she can't second-guess we can't second-guess you can't second-guess they can't second-guess	I can't be second-guessing you can't be second-guessing she can't be second-guessing we can't be second-guessing you can't be second-guessing they can't be second-guessing
Perfect	V-ing perfect
I can't have second-guessed you can't have second-guessed she can't have second-guessed we can't have second-guessed you can't have second-guessed they can't have second-guessed	I can't have been second-guessing you can't have been second-guessing she can't have been second-guessing we can't have been second-guessing you can't have been second-guessing they can't 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't I second-guess? can't you second-guess? can't she second-guess? can't we second-guess? can't you second-guess? can't they second-guess?	can't I be second-guessing? can't you be second-guessing? can't she be second-guessing? can't we be second-guessing? can't you be second-guessing? can't they be second-guessing?
Perfect	V-ing perfect
can't I have second-guessed? can't you have second-guessed? can't she have second-guessed? can't we have second-guessed? can't you have second-guessed? can't they have second-guessed?	can't I have been second-guessing? can't you have been second-guessing? can't she have been second-guessing? can't we have been second-guessing? can't you have been second-guessing? can't they have been second-guessing?