English verb conjugation
CAN GATECRASH

Regular verb: gatecrash - gatecrashed - gatecrashed

Affirmation

Simple form	V-ing form
I can gatecrash you can gatecrash he can gatecrash we can gatecrash you can gatecrash they can gatecrash	I can be gatecrashing you can be gatecrashing he can be gatecrashing we can be gatecrashing you can be gatecrashing they can be gatecrashing
Perfect	V-ing perfect
I can have gatecrashed you can have gatecrashed he can have gatecrashed we can have gatecrashed you can have gatecrashed they can have gatecrashed	I can have been gatecrashing you can have been gatecrashing he can have been gatecrashing we can have been gatecrashing you can have been gatecrashing they can have been gatecrashing

Negation

Simple form	V-ing form
I can't gatecrash you can't gatecrash he can't gatecrash we can't gatecrash you can't gatecrash they can't gatecrash	I can't be gatecrashing you can't be gatecrashing he can't be gatecrashing we can't be gatecrashing you can't be gatecrashing they can't be gatecrashing
Perfect	V-ing perfect
I can't have gatecrashed you can't have gatecrashed he can't have gatecrashed we can't have gatecrashed you can't have gatecrashed they can't have gatecrashed	I can't have been gatecrashing you can't have been gatecrashing he can't have been gatecrashing we can't have been gatecrashing you can't have been gatecrashing they can't have been gatecrashing

Interrogative form

Simple form	V-ing form
can I gatecrash? can you gatecrash? can he gatecrash? can we gatecrash? can you gatecrash? can they gatecrash?	can I be gatecrashing? can you be gatecrashing? can he be gatecrashing? can we be gatecrashing? can you be gatecrashing? can they be gatecrashing?
Perfect	V-ing perfect
can I have gatecrashed? can you have gatecrashed? can he have gatecrashed? can we have gatecrashed? can you have gatecrashed? can they have gatecrashed?	can I have been gatecrashing? can you have been gatecrashing? can he have been gatecrashing? can we have been gatecrashing? can you have been gatecrashing? can they have been gatecrashing?

Interro-negative form

Simple form	V-ing form
can't I gatecrash? can't you gatecrash? can't he gatecrash? can't we gatecrash? can't you gatecrash? can't they gatecrash?	can't I be gatecrashing? can't you be gatecrashing? can't he be gatecrashing? can't we be gatecrashing? can't you be gatecrashing? can't they be gatecrashing?
Perfect	V-ing perfect
can't I have gatecrashed? can't you have gatecrashed? can't he have gatecrashed? can't we have gatecrashed? can't you have gatecrashed? can't they have gatecrashed?	can't I have been gatecrashing? can't you have been gatecrashing? can't he have been gatecrashing? can't we have been gatecrashing? can't you have been gatecrashing? can't they have been gatecrashing?