English verb conjugation
CAN FROGMARCH

Regular verb: frogmarch - frogmarched - frogmarched

Affirmation

Simple form	V-ing form
I can frogmarch you can frogmarch he can frogmarch we can frogmarch you can frogmarch they can frogmarch	I can be frogmarching you can be frogmarching he can be frogmarching we can be frogmarching you can be frogmarching they can be frogmarching
Perfect	V-ing perfect
I can have frogmarched you can have frogmarched he can have frogmarched we can have frogmarched you can have frogmarched they can have frogmarched	I can have been frogmarching you can have been frogmarching he can have been frogmarching we can have been frogmarching you can have been frogmarching they can have been frogmarching

Negation

Simple form	V-ing form
I can't frogmarch you can't frogmarch he can't frogmarch we can't frogmarch you can't frogmarch they can't frogmarch	I can't be frogmarching you can't be frogmarching he can't be frogmarching we can't be frogmarching you can't be frogmarching they can't be frogmarching
Perfect	V-ing perfect
I can't have frogmarched you can't have frogmarched he can't have frogmarched we can't have frogmarched you can't have frogmarched they can't have frogmarched	I can't have been frogmarching you can't have been frogmarching he can't have been frogmarching we can't have been frogmarching you can't have been frogmarching they can't have been frogmarching

Interrogative form

Simple form	V-ing form
can I frogmarch? can you frogmarch? can he frogmarch? can we frogmarch? can you frogmarch? can they frogmarch?	can I be frogmarching? can you be frogmarching? can he be frogmarching? can we be frogmarching? can you be frogmarching? can they be frogmarching?
Perfect	V-ing perfect
can I have frogmarched? can you have frogmarched? can he have frogmarched? can we have frogmarched? can you have frogmarched? can they have frogmarched?	can I have been frogmarching? can you have been frogmarching? can he have been frogmarching? can we have been frogmarching? can you have been frogmarching? can they have been frogmarching?

Interro-negative form

Simple form	V-ing form
can't I frogmarch? can't you frogmarch? can't he frogmarch? can't we frogmarch? can't you frogmarch? can't they frogmarch?	can't I be frogmarching? can't you be frogmarching? can't he be frogmarching? can't we be frogmarching? can't you be frogmarching? can't they be frogmarching?
Perfect	V-ing perfect
can't I have frogmarched? can't you have frogmarched? can't he have frogmarched? can't we have frogmarched? can't you have frogmarched? can't they have frogmarched?	can't I have been frogmarching? can't you have been frogmarching? can't he have been frogmarching? can't we have been frogmarching? can't you have been frogmarching? can't they have been frogmarching?