Conjugation of the verb alter

Indicative
Present
Ialter
youalter
he/she/italters
wealter
youalter
theyalter
Present Progressive
Iam altering
youare altering
he/she/itis altering
weare altering
youare altering
theyare altering
Past
Ialtered
youaltered
he/she/italtered
wealtered
youaltered
theyaltered
Past Progressive
Iwas altering
youwere altering
he/she/itwas altering
wewere altering
youwere altering
theywere altering
Perfect
Ihave altered
youhave altered
he/she/ithas altered
wehave altered
youhave altered
theyhave altered
Perfect Progressive
Ihave been altering
youhave been altering
he/she/ithas been altering
wehave been altering
youhave been altering
theyhave been altering
Pluperfect I
Ihad altered
youhad altered
he/she/ithad altered
wehad altered
youhad altered
theyhad altered
Pluperfect II
Ihad altered
youhad altered
he/she/ithad altered
wehad altered
youhad altered
theyhad altered
Future I
Iwill alter
youwill alter
he/she/itwill alter
wewill alter
youwill alter
theywill alter
Future II
Iam going to alter
youare going to alter
he/she/itis going to alter
weare going to alter
youare going to alter
theyare going to alter
Future Progressive
Iwill be altering
youwill be altering
he/she/itwill be altering
wewill be altering
youwill be altering
theywill be altering
Future Perfect
Iwill have altered
youwill have altered
he/she/itwill have altered
wewill have altered
youwill have altered
theywill have altered
Conditional
Present
Iwould alter
youwould alter
he/she/itwould alter
wewould alter
youwould alter
theywould alter
Progressive
Iwould be altering
youwould be altering
he/she/itwould be altering
wewould be altering
youwould be altering
theywould be altering
Past Progressive
Iwould have been altering
youwould have been altering
he/she/itwould have been altering
wewould have been altering
youwould have been altering
theywould have been altering
Subjunctive
Present
Ialter
youalter
he/she/italters
wealter
youalter
theyalter
Present Perfect
Ihave altered
youhave altered
he/she/ithas altered
wehave altered
youhave altered
theyhave altered
Past
Ialtered
youaltered
he/she/italtered
wealtered
youaltered
theyaltered
Pluperfect I
Ihad altered
youhad altered
he/she/ithad altered
wehad altered
youhad altered
theyhad altered
Past
Ialtered
youaltered
he/she/italtered
wealtered
youaltered
theyaltered
Pluperfect II
Ihad altered
youhad altered
he/she/ithad altered
wehad altered
youhad altered
theyhad altered
Imperative
Imperative
youalter
he/she/italter
welet us alter
youalter
theyalter
Negative Imperative
youdo not alter
he/she/itdo not alter
welet us not alter
youdo not alter
theydo not alter