English verb conjugation
CAN LATCH

Regular verb: latch - latched - latched

Affirmation

Simple form	V-ing form
I can latch you can latch he can latch we can latch you can latch they can latch	I can be latching you can be latching he can be latching we can be latching you can be latching they can be latching
Perfect	V-ing perfect
I can have latched you can have latched he can have latched we can have latched you can have latched they can have latched	I can have been latching you can have been latching he can have been latching we can have been latching you can have been latching they can have been latching

Negation

Simple form	V-ing form
I can't latch you can't latch he can't latch we can't latch you can't latch they can't latch	I can't be latching you can't be latching he can't be latching we can't be latching you can't be latching they can't be latching
Perfect	V-ing perfect
I can't have latched you can't have latched he can't have latched we can't have latched you can't have latched they can't have latched	I can't have been latching you can't have been latching he can't have been latching we can't have been latching you can't have been latching they can't have been latching

Interrogative form

Simple form	V-ing form
can I latch? can you latch? can he latch? can we latch? can you latch? can they latch?	can I be latching? can you be latching? can he be latching? can we be latching? can you be latching? can they be latching?
Perfect	V-ing perfect
can I have latched? can you have latched? can he have latched? can we have latched? can you have latched? can they have latched?	can I have been latching? can you have been latching? can he have been latching? can we have been latching? can you have been latching? can they have been latching?

Interro-negative form

Simple form	V-ing form
can't I latch? can't you latch? can't he latch? can't we latch? can't you latch? can't they latch?	can't I be latching? can't you be latching? can't he be latching? can't we be latching? can't you be latching? can't they be latching?
Perfect	V-ing perfect
can't I have latched? can't you have latched? can't he have latched? can't we have latched? can't you have latched? can't they have latched?	can't I have been latching? can't you have been latching? can't he have been latching? can't we have been latching? can't you have been latching? can't they have been latching?