English verb conjugation
CAN STARCH

Regular verb: starch - starched - starched

Affirmation

Simple form	V-ing form
I can starch you can starch he can starch we can starch you can starch they can starch	I can be starching you can be starching he can be starching we can be starching you can be starching they can be starching
Perfect	V-ing perfect
I can have starched you can have starched he can have starched we can have starched you can have starched they can have starched	I can have been starching you can have been starching he can have been starching we can have been starching you can have been starching they can have been starching

Negation

Simple form	V-ing form
I can't starch you can't starch he can't starch we can't starch you can't starch they can't starch	I can't be starching you can't be starching he can't be starching we can't be starching you can't be starching they can't be starching
Perfect	V-ing perfect
I can't have starched you can't have starched he can't have starched we can't have starched you can't have starched they can't have starched	I can't have been starching you can't have been starching he can't have been starching we can't have been starching you can't have been starching they can't have been starching

Interrogative form

Simple form	V-ing form
can I starch? can you starch? can he starch? can we starch? can you starch? can they starch?	can I be starching? can you be starching? can he be starching? can we be starching? can you be starching? can they be starching?
Perfect	V-ing perfect
can I have starched? can you have starched? can he have starched? can we have starched? can you have starched? can they have starched?	can I have been starching? can you have been starching? can he have been starching? can we have been starching? can you have been starching? can they have been starching?

Interro-negative form

Simple form	V-ing form
can't I starch? can't you starch? can't he starch? can't we starch? can't you starch? can't they starch?	can't I be starching? can't you be starching? can't he be starching? can't we be starching? can't you be starching? can't they be starching?
Perfect	V-ing perfect
can't I have starched? can't you have starched? can't he have starched? can't we have starched? can't you have starched? can't they have starched?	can't I have been starching? can't you have been starching? can't he have been starching? can't we have been starching? can't you have been starching? can't they have been starching?